Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 12.  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)
 02/12/2023   22:40:03   (  -0.01,-136.99) (  -0.45,-139.08)  237.28                80
 02/13/2023   22:23:58   (  -0.01,-136.99) (   0.55,-134.55)  277.97                80
 02/15/2023   10:45:47   (   0.02,-136.97) (   0.64,-139.83)  325.05                80
 02/16/2023   10:24:22   (   0.02,-136.96) (  -0.36,-135.30)  189.49                80
 02/17/2023   22:46:19   (  -0.02,-136.93) (  -0.81,-140.61)  418.08                80
 02/18/2023   22:27:35   (  -0.02,-136.92) (   0.19,-136.08)   96.23                80
 02/21/2023   10:30:39   (   0.02,-136.88) (  -0.01,-136.82)    6.65                80
 02/23/2023   22:36:31   (  -0.02,-136.83) (  -0.22,-137.60)   87.59                80
 02/24/2023   22:15:07   (  -0.02,-136.81) (   0.84,-133.08)  426.31                80
 02/26/2023   10:39:35   (   0.02,-136.78) (   0.40,-138.34)  178.43                80