Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 11 25.  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)
 11/26/2023   08:37:57   (   0.01,-104.68) (   0.79,-108.20)  400.91                80
 11/27/2023   08:16:32   (   0.02,-104.68) (  -0.19,-103.67)  115.18                80
 11/28/2023   20:38:30   (  -0.02,-104.65) (  -1.00,-108.97)  492.70                80
 11/29/2023   20:22:26   (  -0.02,-104.65) (   0.04,-104.45)   23.39                80
 12/02/2023   08:25:31   (   0.01,-104.68) (   0.12,-105.20)   58.36                80
 12/03/2023   08:04:07   (  -0.00,-104.69) (  -0.92,-100.67)  457.71                80
 12/04/2023   20:26:04   (   0.00,-104.66) (  -0.30,-105.97)  149.65                80
 12/05/2023   20:10:00   (   0.01,-104.67) (   0.75,-101.45)  366.99                80
 12/07/2023   08:31:49   (   0.00,-104.70) (   0.45,-106.72)  229.67                80
 12/08/2023   08:10:24   (  -0.00,-104.71) (  -0.55,-102.19)  286.79                80