Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2022 12 1.  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)
 12/02/2022   22:32:45   (  -0.00,-136.86) (   0.08,-136.52)   39.33                80
 12/04/2022   10:47:41   (   0.01,-136.87) (   0.72,-140.13)  370.67                80
 12/05/2022   10:21:49   (   0.01,-136.86) (  -0.54,-134.51)  267.91                80
 12/06/2022   22:36:55   (  -0.01,-136.81) (  -0.33,-138.15)  153.00                80
 12/07/2022   22:16:23   (  -0.02,-136.80) (   0.95,-132.55)  485.12                80
 12/09/2022   10:28:37   (   0.02,-136.79) (  -0.11,-136.13)   74.97                80
 12/10/2022   22:43:46   (  -0.03,-136.74) (  -0.69,-139.80)  348.04                80
 12/11/2022   22:23:13   (  -0.03,-136.72) (   0.54,-134.18)  289.40                80
 12/13/2022   10:38:06   (   0.03,-136.71) (   0.27,-137.77)  120.57                80