Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 9.  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)
 02/10/2023   10:39:31   (   0.00,-137.00) (   0.30,-138.30)  148.12                80
 02/11/2023   10:18:05   (   0.00,-137.00) (  -0.73,-133.77)  368.42                80
 02/12/2023   22:40:00   (   0.00,-136.99) (  -0.46,-139.07)  236.45                80
 02/13/2023   22:23:54   (   0.00,-136.98) (   0.57,-134.54)  279.50                80
 02/15/2023   10:45:39   (  -0.01,-136.97) (   0.63,-139.80)  322.35                80
 02/16/2023   10:24:14   (  -0.01,-136.96) (  -0.41,-135.27)  192.99                80
 02/17/2023   22:46:07   (   0.01,-136.93) (  -0.82,-140.56)  413.65                80
 02/18/2023   22:30:02   (   0.01,-136.92) (   0.23,-136.03)  101.54                80
 02/21/2023   10:30:21   (  -0.00,-136.87) (  -0.04,-136.75)   14.18                80