Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 3 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 03/31/2021   19:01:27   (   0.13,-128.37) (  -0.02,-127.79)   67.28                80
 04/02/2021   18:49:13   (   0.12,-128.34) (  -0.61,-124.82)  400.37                80
 04/03/2021   07:10:37   (  -0.12,-128.25) (  -0.48,-130.01)  200.07                80
 04/05/2021   06:55:43   (  -0.11,-128.22) (   0.11,-127.05)  132.36                80
 04/05/2021   19:16:59   (   0.11,-128.28) (   0.93,-132.22)  446.70                80
 04/07/2021   06:43:30   (  -0.11,-128.18) (   0.76,-124.09)  464.73                80
 04/07/2021   19:04:45   (   0.11,-128.25) (   0.34,-129.25)  114.16                80
 04/09/2021   18:55:12   (   0.11,-128.21) (  -0.32,-126.30)  218.48                80
 04/10/2021   07:16:34   (  -0.10,-128.13) (  -0.82,-131.48)  380.96                80
 04/12/2021   07:04:20   (  -0.10,-128.09) (  -0.22,-128.51)   48.80                80