Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2021   06:55:35   (  -0.06,-127.78) (   0.10,-127.07)   80.96                80
 04/23/2021   06:43:22   (  -0.06,-127.71) (   0.71,-124.11)  408.91                80
 04/23/2021   19:04:37   (   0.05,-127.75) (   0.39,-129.27)  172.64                80
 04/25/2021   18:55:04   (   0.06,-127.67) (  -0.23,-126.31)  155.02                80
 04/26/2021   07:16:28   (  -0.05,-127.59) (  -0.87,-131.50)  444.29                80
 04/27/2021   18:42:51   (   0.06,-127.59) (  -0.85,-123.35)  482.09                80
 04/28/2021   07:04:15   (  -0.05,-127.51) (  -0.25,-128.55)  117.62                80
 04/30/2021   06:49:21   (  -0.05,-127.41) (   0.32,-125.58)  208.29                80
 04/30/2021   19:10:37   (   0.04,-127.44) (   0.72,-130.75)  375.20                80
 05/02/2021   18:58:23   (   0.04,-127.34) (   0.15,-127.78)   49.76                80
 05/04/2021   18:48:50   (   0.04,-127.24) (  -0.49,-124.82)  275.63                80