Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 15.  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)
 02/16/2023   10:24:22   (   0.02,-136.96) (  -0.35,-135.29)  189.69                80
 02/17/2023   22:46:18   (  -0.02,-136.93) (  -0.86,-140.60)  417.73                80
 02/18/2023   22:27:34   (  -0.02,-136.92) (   0.15,-136.07)   96.67                80
 02/21/2023   10:30:37   (   0.02,-136.88) (  -0.02,-136.82)    7.89                80
 02/23/2023   22:36:28   (  -0.02,-136.83) (  -0.20,-137.59)   86.28                80
 02/24/2023   22:15:04   (  -0.02,-136.81) (   0.83,-133.06)  427.80                80
 02/26/2023   10:39:31   (   0.02,-136.78) (   0.37,-138.33)  176.54                80
 02/27/2023   10:18:06   (   0.02,-136.76) (  -0.61,-133.79)  337.12                80
 02/28/2023   22:42:42   (  -0.03,-136.72) (  -0.55,-139.11)  271.75                80