Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2020 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)
 04/22/2020   18:56:49   (   0.27,-128.10) (  -0.08,-126.34)  200.00                80
 04/23/2020   07:18:13   (  -0.26,-128.08) (  -1.01,-131.53)  392.24                80
 04/25/2020   07:06:00   (  -0.26,-128.12) (  -0.38,-128.56)   51.02                80
 04/27/2020   06:51:08   (  -0.26,-128.15) (   0.31,-125.61)  289.55                80
 04/27/2020   19:12:23   (   0.25,-128.19) (   0.80,-130.76)  292.85                80
 04/29/2020   19:02:50   (   0.25,-128.21) (   0.17,-127.80)   46.73                80
 05/01/2020   18:50:37   (   0.24,-128.23) (  -0.46,-124.83)  385.83                80
 05/02/2020   07:12:00   (  -0.23,-128.21) (  -0.62,-130.03)  206.66                80
 05/04/2020   06:57:08   (  -0.23,-128.23) (   0.02,-127.06)  132.11                80
 05/04/2020   19:18:22   (   0.23,-128.25) (   1.09,-132.22)  451.37                80