Fifteen-minute final constraints

ISONE's Fifteen-minute final constraints.

Congestion & Constraints data ISO-NE market

Query with the agent

Native record

publisher period x document x sheet/archive member x source row x collected revision

day publication publication cadence

Evidence

Mixed evidence

Multiple evidence types kept distinct in the contract

Time basis

Date-labelled records

UTC · report_date

Overview

Each row preserves a publisher record, workbook row, or report document with its source member and row index. Source timestamps, units, geographic scope, and revision qualifiers are retained in record_json; event_time is collection time; completed_at is when the entire document became available.

Query contract

The view admits a document only when its completion record and exact mirrored row count agree. Select a report_date, source_url and source_sha256 revision before joining source_member and row_index. Interpret observation times from the source record, never from the collection clock.

Analysis rules

Decode the report's source headers and units before aggregating. Never sum report_date, row_index, snapshots, revisions, regional totals and components, or forecast vintages.

Interpretation

report_date identifies the requested publisher period. It is not an observation timestamp. event_time records collection, not source publication or delivery.
The serving mirror keeps the latest row for each publisher record; older collected revisions may no longer be queryable.

Access

Query from your own tools

Use the guarded HTTP endpoint directly, or connect an MCP client and load the dataset contract with describe_data before calling query_data.

ISO-NE MCP API reference

HTTP endpoint

POST /api/v1/datasets/iso_ne_report_constraints_rt_15m_final/query

Need the full history of this dataset in Snowflake, Databricks or your own storage? Data services delivers it on a schedule.

Schema11

Column

Type

event_timeDateTime64(6, 'UTC')

datasetLowCardinality(String)

report_dateDate32

source_urlString

source_memberString

source_sha256String

row_indexInt64

record_jsonString

response_metadataString

ingested_atDateTime64(6, 'UTC')

completed_atDateTime64(6, 'UTC')

Sample data

event_time	dataset	report_date	source_url	source_member	source_sha256	record_json	response_metadata	ingested_at	completed_at
2026-10-11 03:39:50.167042	constraints_rt_15m_final	2026-10-10	https://webservices.iso-ne.com/api/v1.1/fifteenminuteconstraints/final/day/20261010.json	20261010.json	185c3014e2c4d0c4964865a063d577612cdd8b52b6034dc5afa151ea7cbabd80	{"FifteenMinBcs": {}}	{"content-type": "application/json"}	2026-10-11 03:39:50.180664	2026-10-11 03:39:50.292295
2026-10-11 03:39:49.799386	constraints_rt_15m_final	2026-10-09	https://webservices.iso-ne.com/api/v1.1/fifteenminuteconstraints/final/day/20261009.json	20261009.json	185c3014e2c4d0c4964865a063d577612cdd8b52b6034dc5afa151ea7cbabd80	{"FifteenMinBcs": {}}	{"content-type": "application/json"}	2026-10-11 03:39:49.812666	2026-10-11 03:39:49.931046
2026-10-11 03:39:49.422189	constraints_rt_15m_final	2026-10-08	https://webservices.iso-ne.com/api/v1.1/fifteenminuteconstraints/final/day/20261008.json	20261008.json	fc52fc4885f2e0daf0dd3b7418ed44ced6ef253f89b3138e96bb9bf6c4b7b3bb	{"FifteenMinBcs": {"FifteenMinBc": [{"BeginDate": "2026-10-08T05:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T05:45:00.000-04:00", "MarginalValue": 1.33, "HourEnd": "06"}, {"BeginDate": "2026-10-08T06:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T06:45:00.000-04:00", "MarginalValue": -2.76, "HourEnd": "07"}, {"BeginDate": "2026-10-08T07:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T07:00:00.000-04:00", "MarginalValue": 3.37, "HourEnd": "08"}, {"BeginDate": "2026-10-08T08:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T08:30:00.000-04:00", "MarginalValue": 2.47, "HourEnd": "09"}, {"BeginDate": "2026-10-08T08:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T08:45:00.000-04:00", "MarginalValue": -7.6, "HourEnd": "09"}, {"BeginDate": "2026-10-08T09:15:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T09:15:00.000-04:00", "MarginalValue": -0.05, "HourEnd": "10"}, {"BeginDate": "2026-10-08T09:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T09:45:00.000-04:00", "MarginalValue": -0.55, "HourEnd": "10"}, {"BeginDate": "2026-10-08T10:00:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-08T10:00:00.000-04:00", "MarginalValue": 0, "HourEnd": "11"}, {"BeginDate": "2026-10-08T10:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T10:00:00.000-04:00", "MarginalValue": 2.73, "HourEnd": "11"}, {"BeginDate": "2026-10-08T13:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-08T13:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "14"}, {"BeginDate": "2026-10-08T17:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-08T17:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "18"}, {"BeginDate": "2026-10-08T17:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T17:30:00.000-04:00", "MarginalValue": -0.11, "HourEnd": "18"}, {"BeginDate": "2026-10-08T21:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T21:00:00.000-04:00", "MarginalValue": 0.65, "HourEnd": "22"}, {"BeginDate": "2026-10-08T21:15:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T21:15:00.000-04:00", "MarginalValue": -5.97, "HourEnd": "22"}, {"BeginDate": "2026-10-08T22:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-08T22:00:00.000-04:00", "MarginalValue": 1.21, "HourEnd": "23"}]}}	{"content-type": "application/json"}	2026-10-11 03:39:49.436694	2026-10-11 03:39:49.560804
2026-10-11 03:39:49.048916	constraints_rt_15m_final	2026-10-07	https://webservices.iso-ne.com/api/v1.1/fifteenminuteconstraints/final/day/20261007.json	20261007.json	7c257ee3c59f029405d8b9cdd81368b82d43f70f127e659455ed26b975795297	{"FifteenMinBcs": {"FifteenMinBc": [{"BeginDate": "2026-10-07T00:45:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T00:45:00.000-04:00", "MarginalValue": 0, "HourEnd": "01"}, {"BeginDate": "2026-10-07T03:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T03:45:00.000-04:00", "MarginalValue": 0.01, "HourEnd": "04"}, {"BeginDate": "2026-10-07T04:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T04:45:00.000-04:00", "MarginalValue": 0.47, "HourEnd": "05"}, {"BeginDate": "2026-10-07T05:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T05:45:00.000-04:00", "MarginalValue": 6.61, "HourEnd": "06"}, {"BeginDate": "2026-10-07T06:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T06:00:00.000-04:00", "MarginalValue": 3.06, "HourEnd": "07"}, {"BeginDate": "2026-10-07T06:15:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T06:15:00.000-04:00", "MarginalValue": -3.7, "HourEnd": "07"}, {"BeginDate": "2026-10-07T07:00:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T07:00:00.000-04:00", "MarginalValue": 0, "HourEnd": "08"}, {"BeginDate": "2026-10-07T07:15:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-07T07:15:00.000-04:00", "MarginalValue": -2.37, "HourEnd": "08"}, {"BeginDate": "2026-10-07T07:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T07:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "08"}, {"BeginDate": "2026-10-07T08:00:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T08:00:00.000-04:00", "MarginalValue": 0, "HourEnd": "09"}, {"BeginDate": "2026-10-07T08:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T08:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "09"}, {"BeginDate": "2026-10-07T08:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T08:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "09"}, {"BeginDate": "2026-10-07T08:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T08:30:00.000-04:00", "MarginalValue": -1.18, "HourEnd": "09"}, {"BeginDate": "2026-10-07T08:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T08:45:00.000-04:00", "MarginalValue": 4.88, "HourEnd": "09"}, {"BeginDate": "2026-10-07T09:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T09:00:00.000-04:00", "MarginalValue": 1.63, "HourEnd": "10"}, {"BeginDate": "2026-10-07T09:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T09:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "10"}, {"BeginDate": "2026-10-07T09:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T09:30:00.000-04:00", "MarginalValue": -0.18, "HourEnd": "10"}, {"BeginDate": "2026-10-07T09:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T09:45:00.000-04:00", "MarginalValue": -2.95, "HourEnd": "10"}, {"BeginDate": "2026-10-07T10:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T10:00:00.000-04:00", "MarginalValue": 2.06, "HourEnd": "11"}, {"BeginDate": "2026-10-07T10:15:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T10:15:00.000-04:00", "MarginalValue": 0.66, "HourEnd": "11"}, {"BeginDate": "2026-10-07T14:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T14:00:00.000-04:00", "MarginalValue": -0.27, "HourEnd": "15"}, {"BeginDate": "2026-10-07T16:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T16:00:00.000-04:00", "MarginalValue": -1.07, "HourEnd": "17"}, {"BeginDate": "2026-10-07T17:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T17:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "18"}, {"BeginDate": "2026-10-07T21:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T21:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "22"}, {"BeginDate": "2026-10-07T21:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T21:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "22"}, {"BeginDate": "2026-10-07T22:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T22:00:00.000-04:00", "MarginalValue": 3.52, "HourEnd": "23"}, {"BeginDate": "2026-10-07T22:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T22:45:00.000-04:00", "MarginalValue": -0.64, "HourEnd": "23"}, {"BeginDate": "2026-10-07T23:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T23:00:00.000-04:00", "MarginalValue": 1.25, "HourEnd": "24"}, {"BeginDate": "2026-10-07T23:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-07T23:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "24"}, {"BeginDate": "2026-10-07T23:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-07T23:45:00.000-04:00", "MarginalValue": 1.26, "HourEnd": "24"}]}}	{"content-type": "application/json"}	2026-10-11 03:39:49.062342	2026-10-11 03:39:49.177061
2026-10-11 03:39:48.619413	constraints_rt_15m_final	2026-10-06	https://webservices.iso-ne.com/api/v1.1/fifteenminuteconstraints/final/day/20261006.json	20261006.json	3e7154dd01cf0b56a8d3963371d987d982cb5c02437847d5783d33bef0986f56	{"FifteenMinBcs": {"FifteenMinBc": [{"BeginDate": "2026-10-06T00:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T00:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "01"}, {"BeginDate": "2026-10-06T00:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T00:45:00.000-04:00", "MarginalValue": -0.7, "HourEnd": "01"}, {"BeginDate": "2026-10-06T02:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T02:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "03"}, {"BeginDate": "2026-10-06T03:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T03:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "04"}, {"BeginDate": "2026-10-06T03:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T03:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "04"}, {"BeginDate": "2026-10-06T04:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T04:00:00.000-04:00", "MarginalValue": -1.28, "HourEnd": "05"}, {"BeginDate": "2026-10-06T04:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T04:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "05"}, {"BeginDate": "2026-10-06T06:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T06:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "07"}, {"BeginDate": "2026-10-06T06:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T06:45:00.000-04:00", "MarginalValue": 20.25, "HourEnd": "07"}, {"BeginDate": "2026-10-06T07:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T07:00:00.000-04:00", "MarginalValue": -33.44, "HourEnd": "08"}, {"BeginDate": "2026-10-06T07:15:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T07:15:00.000-04:00", "MarginalValue": -22.25, "HourEnd": "08"}, {"BeginDate": "2026-10-06T08:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T08:00:00.000-04:00", "MarginalValue": 5.22, "HourEnd": "09"}, {"BeginDate": "2026-10-06T08:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T08:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "09"}, {"BeginDate": "2026-10-06T08:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T08:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "09"}, {"BeginDate": "2026-10-06T08:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T08:45:00.000-04:00", "MarginalValue": 2.74, "HourEnd": "09"}, {"BeginDate": "2026-10-06T09:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T09:00:00.000-04:00", "MarginalValue": 12, "HourEnd": "10"}, {"BeginDate": "2026-10-06T09:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T09:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "10"}, {"BeginDate": "2026-10-06T09:15:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T09:15:00.000-04:00", "MarginalValue": -11.46, "HourEnd": "10"}, {"BeginDate": "2026-10-06T09:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T09:45:00.000-04:00", "MarginalValue": -2.58, "HourEnd": "10"}, {"BeginDate": "2026-10-06T10:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T10:00:00.000-04:00", "MarginalValue": -0.76, "HourEnd": "11"}, {"BeginDate": "2026-10-06T12:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T12:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "13"}, {"BeginDate": "2026-10-06T12:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T12:45:00.000-04:00", "MarginalValue": 5.36, "HourEnd": "13"}, {"BeginDate": "2026-10-06T14:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T14:00:00.000-04:00", "MarginalValue": 2.68, "HourEnd": "15"}, {"BeginDate": "2026-10-06T14:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T14:45:00.000-04:00", "MarginalValue": 5.54, "HourEnd": "15"}, {"BeginDate": "2026-10-06T15:45:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T15:45:00.000-04:00", "MarginalValue": 0, "HourEnd": "16"}, {"BeginDate": "2026-10-06T16:00:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T16:00:00.000-04:00", "MarginalValue": 0, "HourEnd": "17"}, {"BeginDate": "2026-10-06T16:15:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T16:15:00.000-04:00", "MarginalValue": -6.73, "HourEnd": "17"}, {"BeginDate": "2026-10-06T16:45:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T16:45:00.000-04:00", "MarginalValue": 0, "HourEnd": "17"}, {"BeginDate": "2026-10-06T16:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T16:45:00.000-04:00", "MarginalValue": 0.48, "HourEnd": "17"}, {"BeginDate": "2026-10-06T17:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T17:00:00.000-04:00", "MarginalValue": -1.18, "HourEnd": "18"}, {"BeginDate": "2026-10-06T17:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T17:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "18"}, {"BeginDate": "2026-10-06T18:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T18:45:00.000-04:00", "MarginalValue": 11.23, "HourEnd": "19"}, {"BeginDate": "2026-10-06T20:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T20:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "21"}, {"BeginDate": "2026-10-06T20:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T20:30:00.000-04:00", "MarginalValue": 2.03, "HourEnd": "21"}, {"BeginDate": "2026-10-06T22:00:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-06T22:00:00.000-04:00", "MarginalValue": 0, "HourEnd": "23"}, {"BeginDate": "2026-10-06T22:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T22:00:00.000-04:00", "MarginalValue": 0.23, "HourEnd": "23"}, {"BeginDate": "2026-10-06T22:15:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T22:15:00.000-04:00", "MarginalValue": -0.66, "HourEnd": "23"}, {"BeginDate": "2026-10-06T23:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-06T23:00:00.000-04:00", "MarginalValue": -2, "HourEnd": "24"}]}}	{"content-type": "application/json"}	2026-10-11 03:39:48.633698	2026-10-11 03:39:48.772867
2026-10-11 03:39:48.173809	constraints_rt_15m_final	2026-10-05	https://webservices.iso-ne.com/api/v1.1/fifteenminuteconstraints/final/day/20261005.json	20261005.json	b5aa0400bca6f04655722e53c256852b5ec4968f42e2e74351476091f117fc12	{"FifteenMinBcs": {"FifteenMinBc": [{"BeginDate": "2026-10-05T00:00:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-05T00:00:00.000-04:00", "MarginalValue": 0, "HourEnd": "01"}, {"BeginDate": "2026-10-05T06:30:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-05T06:30:00.000-04:00", "MarginalValue": -2.8, "HourEnd": "07"}, {"BeginDate": "2026-10-05T06:45:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-05T06:45:00.000-04:00", "MarginalValue": -19.41, "HourEnd": "07"}, {"BeginDate": "2026-10-05T07:00:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-05T07:00:00.000-04:00", "MarginalValue": -27.13, "HourEnd": "08"}, {"BeginDate": 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2026-10-11 03:39:47.803088	constraints_rt_15m_final	2026-10-04	https://webservices.iso-ne.com/api/v1.1/fifteenminuteconstraints/final/day/20261004.json	20261004.json	12b50058c0a432fd4046d57ccf86c1d0e61043bd4c9bd3461a98e2d73b37be93	{"FifteenMinBcs": {"FifteenMinBc": [{"BeginDate": "2026-10-04T00:45:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T00:45:00.000-04:00", "MarginalValue": 0, "HourEnd": "01"}, {"BeginDate": "2026-10-04T02:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T02:45:00.000-04:00", "MarginalValue": -0.8, "HourEnd": "03"}, {"BeginDate": "2026-10-04T06:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T06:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "07"}, {"BeginDate": "2026-10-04T06:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T06:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "07"}, {"BeginDate": "2026-10-04T07:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T07:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "08"}, {"BeginDate": "2026-10-04T07:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T07:30:00.000-04:00", "MarginalValue": 0.28, "HourEnd": "08"}, {"BeginDate": "2026-10-04T13:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T13:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "14"}, {"BeginDate": "2026-10-04T13:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T13:30:00.000-04:00", "MarginalValue": -6.45, "HourEnd": "14"}, {"BeginDate": "2026-10-04T13:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T13:45:00.000-04:00", "MarginalValue": 0.17, "HourEnd": "14"}, {"BeginDate": "2026-10-04T14:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T14:00:00.000-04:00", "MarginalValue": -1.5, "HourEnd": "15"}, {"BeginDate": "2026-10-04T17:00:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-04T17:00:00.000-04:00", "MarginalValue": -10.21, "HourEnd": "18"}, {"BeginDate": "2026-10-04T17:15:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-04T17:15:00.000-04:00", "MarginalValue": -7.14, "HourEnd": "18"}, {"BeginDate": "2026-10-04T17:30:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-04T17:30:00.000-04:00", "MarginalValue": -1.11, "HourEnd": "18"}, {"BeginDate": "2026-10-04T17:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T17:45:00.000-04:00", "MarginalValue": -1.13, "HourEnd": "18"}, {"BeginDate": "2026-10-04T18:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T18:00:00.000-04:00", "MarginalValue": 4.74, "HourEnd": "19"}, {"BeginDate": "2026-10-04T18:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T18:45:00.000-04:00", "MarginalValue": 1.84, "HourEnd": "19"}, {"BeginDate": "2026-10-04T19:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T19:00:00.000-04:00", "MarginalValue": -8.98, "HourEnd": "20"}, {"BeginDate": "2026-10-04T20:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T20:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "21"}, {"BeginDate": "2026-10-04T21:00:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-04T21:00:00.000-04:00", "MarginalValue": -9.98, "HourEnd": "22"}, {"BeginDate": "2026-10-04T21:15:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-04T21:15:00.000-04:00", "MarginalValue": -11.1, "HourEnd": "22"}, {"BeginDate": "2026-10-04T22:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T22:00:00.000-04:00", "MarginalValue": 8.48, "HourEnd": "23"}, {"BeginDate": "2026-10-04T22:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T22:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "23"}, {"BeginDate": "2026-10-04T22:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T22:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "23"}, {"BeginDate": "2026-10-04T23:00:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-04T23:00:00.000-04:00", "MarginalValue": 1.97, "HourEnd": "24"}, {"BeginDate": "2026-10-04T23:45:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-04T23:45:00.000-04:00", "MarginalValue": 0, "HourEnd": "24"}]}}	{"content-type": "application/json"}	2026-10-11 03:39:47.818265	2026-10-11 03:39:47.931855
2026-10-11 03:39:46.675669	constraints_rt_15m_final	2026-10-03	https://webservices.iso-ne.com/api/v1.1/fifteenminuteconstraints/final/day/20261003.json	20261003.json	703b5ed6bd81548bab0fe5fd1221c1a2d48c7742342571228b48e09186011240	{"FifteenMinBcs": {"FifteenMinBc": [{"BeginDate": "2026-10-03T03:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-03T03:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "04"}, {"BeginDate": "2026-10-03T03:30:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-03T03:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "04"}, {"BeginDate": "2026-10-03T07:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-03T07:30:00.000-04:00", "MarginalValue": 3.36, "HourEnd": "08"}, {"BeginDate": "2026-10-03T08:15:00.000-04:00", "ConstraintName": "NYCA Ramp Limit", "MarginalValueInterval": "2026-10-03T08:15:00.000-04:00", "MarginalValue": 0, "HourEnd": "09"}, {"BeginDate": 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"2026-10-03T10:30:00.000-04:00", "MarginalValue": 2.78, "HourEnd": "11"}, {"BeginDate": "2026-10-03T10:45:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-03T10:45:00.000-04:00", "MarginalValue": 2.62, "HourEnd": "11"}, {"BeginDate": "2026-10-03T11:00:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-03T11:00:00.000-04:00", "MarginalValue": 2.2, "HourEnd": "12"}, {"BeginDate": "2026-10-03T11:15:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-03T11:15:00.000-04:00", "MarginalValue": 1.73, "HourEnd": "12"}, {"BeginDate": "2026-10-03T11:30:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-03T11:30:00.000-04:00", "MarginalValue": 11.5, "HourEnd": "12"}, {"BeginDate": "2026-10-03T11:45:00.000-04:00", "ConstraintName": "Flow Limit", "MarginalValueInterval": "2026-10-03T11:45:00.000-04:00", "MarginalValue": 4.92, "HourEnd": "12"}, {"BeginDate": 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"2026-10-03T21:30:00.000-04:00", "MarginalValue": 0, "HourEnd": "22"}, {"BeginDate": "2026-10-03T21:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-03T21:45:00.000-04:00", "MarginalValue": -0.74, "HourEnd": "22"}, {"BeginDate": "2026-10-03T23:30:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-03T23:30:00.000-04:00", "MarginalValue": 4.08, "HourEnd": "24"}, {"BeginDate": "2026-10-03T23:45:00.000-04:00", "ConstraintName": "Ramp Limit", "MarginalValueInterval": "2026-10-03T23:45:00.000-04:00", "MarginalValue": 6.91, "HourEnd": "24"}]}}	{"content-type": "application/json"}	2026-10-11 03:39:46.827691	2026-10-11 03:39:47.553376

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Related congestion & constraints data
Dataset	Description
Day-Ahead ConstraintsISONE · daily hourly market results	ISO-NE day-ahead transmission constraints with constraint, contingency, interface flag, and the publisher-signed marginal_value. The source values use the opposite sign from Ask the Grid's canonical shadow price, so analytical ranking should use atg.isone_constraints_da; a non-zero value is cleared day-ahead congestion evidence, not proof of a real-time binding condition.
Fifteen-minute preliminary constraintsISONE · day publication	ISONE's Fifteen-minute preliminary constraints. Each row preserves a publisher record, workbook row, or report document with its source member and row index. Source timestamps, units, geographic scope, and revision qualifiers are retained in record_json; event_time is collection time; completed_at is when the entire document became available.
Five-minute final constraintsISONE · day publication	ISONE's Five-minute final constraints. Each row preserves a publisher record, workbook row, or report document with its source member and row index. Source timestamps, units, geographic scope, and revision qualifiers are retained in record_json; event_time is collection time; completed_at is when the entire document became available.
Five-minute preliminary constraintsISONE · day publication	ISONE's Five-minute preliminary constraints. Each row preserves a publisher record, workbook row, or report document with its source member and row index. Source timestamps, units, geographic scope, and revision qualifiers are retained in record_json; event_time is collection time; completed_at is when the entire document became available.