Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 18.  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)
 02/18/2023   22:27:34   (  -0.02,-136.92) (   0.18,-136.07)   96.65                80
 02/21/2023   10:30:37   (   0.02,-136.88) (   0.02,-136.81)    7.35                80
 02/23/2023   22:36:29   (  -0.02,-136.83) (  -0.20,-137.59)   86.42                80
 02/24/2023   22:15:04   (  -0.02,-136.81) (   0.83,-133.06)  427.61                80
 02/26/2023   10:39:31   (   0.02,-136.78) (   0.37,-138.33)  176.77                80
 02/27/2023   10:18:07   (   0.02,-136.76) (  -0.66,-133.81)  336.83                80
 02/28/2023   22:42:42   (  -0.03,-136.72) (  -0.58,-139.10)  272.14                80
 03/01/2023   22:21:18   (  -0.03,-136.69) (   0.46,-134.58)  241.19                80
 03/03/2023   10:45:45   (   0.04,-136.65) (   0.73,-139.85)  364.17                80