Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 7 23.  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)
 07/23/2025   20:35:41   (   0.02,-104.73) (   0.00,-107.66)  326.42                 0
 07/24/2025   20:18:06   (   0.02,-104.73) (   0.42,-103.00)  197.39                80
 07/26/2025   08:39:54   (  -0.02,-104.71) (   0.77,-108.26)  404.70                80
 07/27/2025   08:18:29   (  -0.02,-104.72) (  -0.24,-103.73)  111.94                80
 07/28/2025   20:40:26   (   0.02,-104.74) (  -0.93,-109.04)  490.47                80
 07/29/2025   20:24:22   (   0.02,-104.74) (   0.09,-104.51)   26.57                80
 08/01/2025   08:27:25   (  -0.02,-104.74) (   0.10,-105.25)   58.07                80
 08/02/2025   08:06:00   (  -0.02,-104.74) (  -0.92,-100.72)  458.61                80
 08/03/2025   20:27:58   (   0.03,-104.76) (  -0.23,-106.03)  144.14                80
 08/04/2025   20:11:53   (   0.03,-104.77) (   0.79,-101.50)  372.59                80
 08/06/2025   08:33:40   (  -0.04,-104.76) (   0.42,-106.77)  229.33                80