Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 1 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2023   22:30:32   (  -0.01,-136.94) (   0.18,-136.06)  100.61                80
 01/20/2023   10:30:53   (   0.02,-136.93) (  -0.01,-136.80)   15.28                80
 01/22/2023   22:36:43   (  -0.03,-136.91) (  -0.18,-137.57)   75.03                80
 01/23/2023   22:15:18   (  -0.03,-136.90) (   0.82,-133.03)  440.48                80
 01/25/2023   10:39:44   (   0.03,-136.89) (   0.38,-138.30)  161.42                80
 01/26/2023   10:18:20   (   0.03,-136.88) (  -0.69,-133.78)  354.02                80
 01/27/2023   22:42:54   (  -0.03,-136.86) (  -0.54,-139.07)  252.17                80
 01/28/2023   22:21:28   (  -0.03,-136.85) (   0.47,-134.54)  263.04                80
 01/30/2023   10:45:55   (   0.04,-136.83) (   0.72,-139.81)  339.52                80