Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 9.  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)
 09/09/2025   20:34:06   (   0.12,-104.67) (  -0.52,-107.51)  323.78                80
 09/10/2025   20:18:00   (   0.12,-104.67) (   0.48,-102.98)  192.97                80
 09/12/2025   08:39:48   (  -0.12,-104.66) (   0.65,-108.25)  409.05                80
 09/13/2025   08:18:23   (  -0.13,-104.66) (  -0.34,-103.72)  107.00                80
 09/14/2025   20:40:18   (   0.13,-104.66) (  -0.82,-109.02)  496.57                80
 09/15/2025   20:24:13   (   0.13,-104.66) (   0.18,-104.48)   19.77                80
 09/18/2025   08:27:15   (  -0.14,-104.64) (   0.00,-105.21)   65.36                80
 09/19/2025   08:05:50   (  -0.14,-104.64) (  -1.06,-100.69)  451.14                80
 09/20/2025   20:27:45   (   0.14,-104.65) (  -0.16,-105.98)  151.57                80
 09/21/2025   20:11:39   (   0.15,-104.66) (   0.85,-101.44)  365.56                80