Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 1 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)
 01/22/2021   07:02:43   (   0.02,-127.86) (  -0.10,-128.57)   79.34                80
 01/24/2021   06:53:10   (   0.02,-127.80) (   0.49,-125.60)  250.53                80
 01/24/2021   19:11:46   (  -0.06,-127.82) (   0.56,-130.77)  334.55                80
 01/26/2021   18:59:33   (  -0.05,-127.75) (  -0.04,-127.80)    5.51                80
 01/28/2021   18:50:00   (  -0.04,-127.68) (  -0.63,-124.84)  322.96                80
 01/29/2021   07:08:45   (   0.08,-127.62) (  -0.41,-130.04)  274.57                80
 01/31/2021   06:59:12   (   0.08,-127.55) (   0.20,-127.08)   53.56                80
 02/02/2021   06:46:59   (   0.07,-127.47) (   0.80,-124.12)  381.38                80
 02/02/2021   19:05:34   (  -0.11,-127.49) (   0.25,-129.28)  203.86                80