Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 8 21.  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)
 08/22/2023   08:37:08   (   0.01,-104.72) (   0.71,-107.96)  369.24                80
 08/23/2023   08:15:43   (   0.01,-104.72) (  -0.27,-103.43)  146.52                80
 08/24/2023   20:37:41   (  -0.02,-104.69) (  -0.91,-108.74)  461.83                80
 08/25/2023   20:21:36   (  -0.02,-104.68) (   0.08,-104.21)   53.96                80
 08/28/2023   08:24:41   (   0.03,-104.70) (   0.08,-104.96)   29.23                80
 08/29/2023   08:03:17   (   0.03,-104.69) (  -0.91,-100.42)  486.19                80
 08/30/2023   20:25:14   (  -0.03,-104.66) (  -0.26,-105.74)  122.45                80
 08/31/2023   20:09:09   (  -0.03,-104.66) (   0.73,-101.20)  393.49                80
 09/02/2023   08:30:58   (   0.03,-104.69) (   0.46,-106.48)  204.37                80
 09/03/2023   08:09:34   (   0.03,-104.69) (  -0.60,-101.96)  311.45                80