Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 1.  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)
 09/02/2025   08:27:23   (  -0.11,-104.68) (   0.02,-105.25)   65.09                80
 09/03/2025   08:05:58   (  -0.11,-104.67) (  -1.02,-100.72)  450.77                80
 09/04/2025   20:27:53   (   0.12,-104.67) (  -0.21,-106.01)  153.11                80
 09/05/2025   20:11:48   (   0.12,-104.67) (   0.84,-101.48)  363.24                80
 09/07/2025   08:33:35   (  -0.12,-104.66) (   0.36,-106.75)  238.40                80
 09/08/2025   08:12:11   (  -0.12,-104.65) (  -0.69,-102.22)  277.79                80
 09/09/2025   20:34:05   (   0.12,-104.65) (  -0.53,-107.51)  326.20                80
 09/10/2025   20:18:00   (   0.12,-104.65) (   0.47,-102.98)  190.21                80
 09/12/2025   08:39:48   (  -0.12,-104.64) (   0.66,-108.26)  411.20                80
 09/13/2025   08:18:23   (  -0.13,-104.63) (  -0.34,-103.72)  104.55                80