Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 11 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 11/21/2021   04:02:00   (   0.26,-128.36) (  -0.44,-131.47)  354.59                80
 11/22/2021   03:50:13   (   0.25,-128.34) (   0.18,-128.58)   27.97                80
 11/23/2021   03:41:06   (   0.25,-128.33) (   0.85,-125.71)  298.64                80
 11/25/2021   15:59:04   (  -0.25,-128.31) (   0.28,-130.59)  260.98                80
 11/26/2021   15:49:58   (  -0.24,-128.29) (  -0.39,-127.72)   65.06                80
 11/27/2021   15:38:11   (  -0.24,-128.26) (  -1.05,-124.84)  390.98                80
 11/30/2021   03:56:23   (   0.24,-128.18) (  -0.14,-129.78)  182.13                80
 12/01/2021   03:47:17   (   0.24,-128.16) (   0.55,-126.90)  143.52                80
 12/02/2021   03:35:29   (   0.24,-128.13) (   1.17,-124.02)  468.96                80
 12/03/2021   16:05:16   (  -0.24,-128.11) (   0.62,-131.78)  419.34                80