At 51 St, toward Woodlawn, between 1:07 am and 1:08 am. The schedule called for a train every 19 min.
Line
4 train
Station
51 St (station 630)
Direction
toward Woodlawn
Train before
train E4 0014 NLT/WDL, passed 1:07:39 am
Train after
train 04 0020 NLT/WDL, passed 1:08:39 am
Gap
1 min (60 s)
Scheduled gap
19 min
Collector
running the whole time
Scheduled against seen
Each tick is a train at 51 St toward Woodlawn. The two trains either side of the bunch are labeled.
What the MTA feed said
The MTA feed reports each train's next stop. A train has passed 51 St when its next stop moves past it.
Snapshot
Train E4 0014 NLT/WDL (before)
Train 04 0020 NLT/WDL (after)
1:06:09 am
next stop 51 St
next stop Grand Central-42 St
1:07:09 am
next stop 51 St
next stop 51 St
1:08:09 am
next stop 59 St
next stop 51 St
1:09:09 am
next stop 68 St-Hunter College
next stop 59 St
1:10:09 am
next stop 68 St-Hunter College
next stop 59 St
Showing 5 of 5 snapshots in the gap. The full record, every train on the line minute by minute, is in 2026-10-10-4-bunch-90519.json.
Check it yourself
Scheduled times come from the MTA's supplemented GTFS schedule for Sat Oct 10. Positions come from the MTA feed, polled once a minute.
The raw records above are exactly what MTA's servers returned. How the numbers are worked out.