Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 11 22.  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)
 11/22/2023   08:10:14   (   0.00,-104.68) (  -0.56,-102.15)  288.01                80
 11/23/2023   20:32:11   (  -0.00,-104.65) (  -0.65,-107.45)  319.55                80
 11/24/2023   20:16:08   (  -0.00,-104.66) (   0.38,-102.93)  196.83                80
 11/26/2023   08:37:57   (   0.00,-104.69) (   0.79,-108.20)  401.06                80
 11/27/2023   08:16:33   (   0.00,-104.68) (  -0.24,-103.68)  114.95                80
 11/28/2023   20:38:31   (  -0.00,-104.66) (  -0.95,-108.99)  493.22                80
 11/29/2023   20:22:26   (   0.00,-104.66) (   0.02,-104.45)   23.06                80
 12/02/2023   08:25:32   (  -0.01,-104.69) (   0.10,-105.21)   58.64                80
 12/03/2023   08:04:09   (  -0.02,-104.69) (  -0.94,-100.68)  457.58                80
 12/04/2023   20:26:05   (   0.02,-104.67) (  -0.29,-105.98)  150.04                80
 12/05/2023   20:10:01   (   0.02,-104.67) (   0.75,-101.46)  366.66                80