Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 20.  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   06:55:36   (  -0.06,-127.78) (   0.11,-127.07)   81.01                80
 04/23/2021   06:43:23   (  -0.06,-127.71) (   0.72,-124.11)  408.84                80
 04/23/2021   19:04:37   (   0.05,-127.75) (   0.38,-129.27)  172.87                80
 04/25/2021   18:55:04   (   0.06,-127.67) (  -0.24,-126.31)  154.68                80
 04/26/2021   07:16:28   (  -0.05,-127.59) (  -0.86,-131.51)  444.52                80
 04/27/2021   18:42:52   (   0.06,-127.59) (  -0.86,-123.35)  481.65                80
 04/28/2021   07:04:14   (  -0.05,-127.50) (  -0.29,-128.54)  117.94                80
 04/30/2021   06:49:21   (  -0.05,-127.41) (   0.33,-125.58)  207.86                80
 04/30/2021   19:10:36   (   0.04,-127.44) (   0.77,-130.74)  375.80                80
 05/02/2021   18:58:23   (   0.04,-127.34) (   0.14,-127.78)   50.44                80