Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 1 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)
 01/20/2021   07:14:55   (   0.02,-127.92) (  -0.73,-131.52)  409.83                80
 01/22/2021   07:02:42   (   0.02,-127.86) (  -0.14,-128.56)   79.22                80
 01/24/2021   06:53:10   (   0.02,-127.80) (   0.51,-125.60)  250.66                80
 01/24/2021   19:11:46   (  -0.06,-127.82) (   0.54,-130.77)  334.52                80
 01/26/2021   19:02:13   (  -0.05,-127.76) (  -0.06,-127.81)    5.66                80
 01/28/2021   18:50:00   (  -0.04,-127.68) (  -0.65,-124.84)  323.08                80
 01/29/2021   07:08:44   (   0.08,-127.63) (  -0.45,-130.03)  274.35                80
 01/31/2021   06:59:11   (   0.08,-127.55) (   0.16,-127.07)   53.84                80
 02/02/2021   06:46:58   (   0.07,-127.47) (   0.76,-124.11)  381.69                80
 02/02/2021   19:05:34   (  -0.11,-127.49) (   0.29,-129.27)  203.60                80