Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 12 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2023   08:25:36   (  -0.01,-104.69) (   0.11,-105.21)   59.24                80
 12/19/2023   08:04:11   (  -0.02,-104.69) (  -0.90,-100.68)  457.15                80
 12/20/2023   20:26:08   (   0.02,-104.67) (  -0.29,-105.98)  149.53                80
 12/21/2023   20:10:03   (   0.02,-104.67) (   0.73,-101.45)  367.35                80
 12/23/2023   08:31:51   (  -0.01,-104.71) (   0.43,-106.72)  229.35                80
 12/24/2023   08:10:26   (   0.01,-104.71) (  -0.53,-102.18)  287.78                80
 12/25/2023   20:32:22   (  -0.02,-104.68) (  -0.65,-107.48)  319.14                80
 12/26/2023   20:16:18   (  -0.01,-104.68) (   0.37,-102.95)  197.54                80
 12/28/2023   08:38:06   (   0.01,-104.72) (   0.78,-108.23)  399.28                80
 12/29/2023   08:16:42   (   0.00,-104.72) (  -0.25,-103.70)  117.31                80