Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 2 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 02/13/2021   18:47:06   (   0.14,-127.85) (  -0.51,-124.80)  347.20                80
 02/14/2021   07:11:09   (  -0.15,-127.80) (  -0.64,-129.98)  248.64                80
 02/16/2021   06:56:17   (  -0.15,-127.87) (   0.05,-127.04)   95.38                80
 02/16/2021   19:20:12   (   0.16,-127.96) (   1.06,-132.19)  480.93                80
 02/18/2021   06:44:04   (  -0.14,-127.94) (   0.68,-124.08)  438.92                80
 02/18/2021   19:07:59   (   0.16,-128.03) (   0.42,-129.23)  137.53                80
 02/20/2021   18:53:06   (   0.15,-128.08) (  -0.21,-126.27)  205.21                80
 02/21/2021   07:17:09   (  -0.16,-128.03) (  -0.88,-131.47)  390.98                80
 02/23/2021   07:04:56   (  -0.15,-128.08) (  -0.24,-128.51)   49.13                80
 02/25/2021   06:50:04   (  -0.15,-128.12) (   0.40,-125.55)  292.21                80
 02/25/2021   19:13:58   (   0.16,-128.20) (   0.70,-130.71)  285.18                80