Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/15/2021   06:59:20   (  -0.03,-128.03) (   0.14,-127.07)  108.77                80
 01/15/2021   19:17:55   (  -0.00,-128.05) (   0.91,-132.24)  476.55                80
 01/17/2021   06:47:08   (  -0.04,-127.99) (   0.79,-124.12)  440.84                80
 01/17/2021   19:05:43   (   0.01,-128.01) (   0.27,-129.28)  144.57                80
 01/19/2021   18:56:10   (   0.01,-127.97) (  -0.32,-126.32)  187.12                80
 01/20/2021   07:14:55   (   0.02,-127.93) (  -0.72,-131.52)  408.70                80
 01/22/2021   07:02:42   (   0.02,-127.88) (  -0.13,-128.56)   77.49                80
 01/24/2021   06:53:09   (   0.02,-127.82) (   0.46,-125.59)  252.95                80
 01/24/2021   19:11:45   (  -0.06,-127.84) (   0.59,-130.76)  332.34                80
 01/26/2021   19:02:13   (  -0.05,-127.78) (  -0.07,-127.81)    3.41                80