Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/25/2021   18:55:05   (   0.05,-127.68) (  -0.26,-126.32)  156.02                80
 04/26/2021   07:16:28   (  -0.04,-127.60) (  -0.89,-131.50)  443.88                80
 04/27/2021   18:42:51   (   0.05,-127.60) (  -0.82,-123.35)  483.45                80
 04/28/2021   07:04:15   (  -0.04,-127.52) (  -0.27,-128.54)  116.82                80
 04/30/2021   06:49:22   (  -0.05,-127.42) (   0.36,-125.58)  209.43                80
 04/30/2021   19:10:37   (   0.04,-127.46) (   0.74,-130.74)  373.30                80
 05/02/2021   18:58:24   (   0.04,-127.36) (   0.11,-127.78)   47.49                80
 05/04/2021   18:48:50   (   0.03,-127.27) (  -0.46,-124.82)  278.26                80
 05/05/2021   07:10:13   (  -0.03,-127.19) (  -0.63,-130.01)  320.77                80
 05/07/2021   06:55:19   (  -0.03,-127.09) (  -0.05,-127.04)    5.92                80