Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 10 22.  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)
 10/23/2025   20:11:00   (   0.02,-104.69) (   0.81,-101.25)  393.31                80
 10/25/2025   08:32:44   (  -0.01,-104.69) (   0.40,-106.49)  205.53                80
 10/26/2025   08:11:18   (  -0.02,-104.69) (  -0.61,-101.95)  311.09                80
 10/27/2025   20:33:12   (   0.01,-104.68) (  -0.57,-107.25)  293.15                80
 10/28/2025   20:17:06   (   0.02,-104.68) (   0.44,-102.71)  223.87                80
 10/30/2025   08:38:51   (  -0.01,-104.68) (   0.70,-107.97)  374.30                80
 10/31/2025   08:17:24   (  -0.02,-104.68) (  -0.31,-103.43)  142.43                80
 11/01/2025   20:39:18   (   0.01,-104.66) (  -0.91,-108.72)  462.17                80
 11/02/2025   20:23:11   (   0.01,-104.66) (   0.10,-104.18)   55.13                80
 11/05/2025   08:26:09   (   0.00,-104.67) (   0.06,-104.89)   25.30                80