Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 1 30.  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)
 01/31/2025   10:18:28   (   0.02,-137.00) (  -0.72,-133.70)  376.45                80
 02/01/2025   22:43:06   (  -0.03,-137.00) (  -0.45,-139.01)  228.46                80
 02/02/2025   22:21:42   (  -0.03,-137.00) (   0.51,-134.47)  286.89                80
 02/04/2025   10:46:11   (   0.03,-136.98) (   0.67,-139.75)  316.55                80
 02/05/2025   10:24:47   (   0.03,-136.97) (  -0.36,-135.23)  198.30                80
 02/06/2025   22:46:45   (  -0.04,-136.96) (  -0.85,-140.54)  407.94                80
 02/07/2025   22:28:01   (  -0.04,-136.95) (   0.19,-136.02)  106.56                80
 02/09/2025   10:52:30   (   0.05,-136.92) (   1.02,-141.29)  497.84                80
 02/10/2025   10:31:05   (   0.05,-136.90) (   0.03,-136.75)   16.52                80
 02/12/2025   22:36:58   (  -0.05,-136.87) (  -0.21,-137.53)   76.05                80