Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 9 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)
 09/21/2021   06:49:42   (   0.36,-127.90) (   0.81,-125.66)  253.22                80
 09/21/2021   19:08:17   (  -0.37,-127.83) (   0.29,-130.82)  340.21                80
 09/23/2021   18:56:04   (  -0.37,-127.77) (  -0.36,-127.87)   10.83                80
 09/25/2021   18:46:30   (  -0.36,-127.71) (  -0.95,-124.91)  318.10                80
 09/26/2021   07:05:14   (   0.38,-127.73) (  -0.14,-130.10)  269.62                80
 09/28/2021   06:55:40   (   0.37,-127.66) (   0.46,-127.14)   58.55                80
 09/30/2021   06:43:26   (   0.36,-127.58) (   1.05,-124.18)  386.03                80
 09/30/2021   19:02:01   (  -0.37,-127.51) (   0.04,-129.33)  208.08                80
 10/02/2021   18:52:28   (  -0.37,-127.42) (  -0.62,-126.38)  118.92                80
 10/03/2021   07:11:11   (   0.37,-127.45) (  -0.52,-131.57)  469.04                80