Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 7 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/14/2021   18:53:46   (  -0.09,-127.79) (  -0.40,-126.32)  166.95                80
 07/15/2021   07:15:09   (   0.07,-127.81) (  -0.74,-131.50)  420.58                80
 07/16/2021   18:41:32   (  -0.10,-127.71) (  -1.02,-123.36)  495.01                80
 07/17/2021   07:02:55   (   0.08,-127.73) (  -0.12,-128.54)   92.80                80
 07/19/2021   06:48:01   (   0.08,-127.65) (   0.50,-125.58)  234.38                80
 07/19/2021   19:09:16   (  -0.06,-127.58) (   0.59,-130.74)  359.04                80
 07/21/2021   18:57:02   (  -0.07,-127.49) (  -0.03,-127.78)   32.79                80
 07/23/2021   18:47:27   (  -0.07,-127.39) (  -0.60,-124.80)  293.15                80
 07/24/2021   07:08:51   (   0.05,-127.41) (  -0.48,-130.00)  293.92                80
 07/26/2021   06:53:57   (   0.07,-127.32) (   0.16,-127.04)   31.82                80