Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2025   20:40:17   (   0.11,-104.66) (  -0.88,-109.00)  495.24                80
 09/15/2025   20:24:13   (   0.12,-104.66) (   0.17,-104.48)   21.23                80
 09/18/2025   08:27:15   (  -0.12,-104.64) (   0.01,-105.21)   64.73                80
 09/19/2025   08:05:49   (  -0.13,-104.64) (  -0.99,-100.67)  451.81                80
 09/20/2025   20:27:44   (   0.13,-104.66) (  -0.17,-105.98)  149.69                80
 09/21/2025   20:11:39   (   0.13,-104.67) (   0.83,-101.44)  367.53                80
 09/23/2025   08:33:26   (  -0.12,-104.66) (   0.34,-106.71)  233.42                80
 09/24/2025   08:12:01   (  -0.13,-104.66) (  -0.66,-102.17)  283.38                80
 09/25/2025   20:33:56   (   0.12,-104.68) (  -0.49,-107.47)  318.74                80
 09/26/2025   20:17:51   (   0.13,-104.68) (   0.51,-102.94)  198.28                80