Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 10 8.  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)
 10/09/2025   08:33:09   (  -0.04,-104.71) (   0.38,-106.61)  217.38                80
 10/10/2025   08:11:42   (  -0.04,-104.71) (  -0.60,-102.07)  299.98                80
 10/11/2025   20:33:37   (   0.04,-104.72) (  -0.53,-107.38)  302.07                80
 10/12/2025   20:17:31   (   0.04,-104.73) (   0.45,-102.83)  215.56                80
 10/14/2025   08:39:16   (  -0.04,-104.73) (   0.74,-108.09)  383.03                80
 10/15/2025   08:17:51   (  -0.04,-104.74) (  -0.30,-103.56)  134.40                80
 10/16/2025   20:39:45   (   0.04,-104.75) (  -0.89,-108.85)  467.65                80
 10/17/2025   20:23:40   (   0.04,-104.76) (   0.16,-104.32)   50.62                80
 10/20/2025   08:26:38   (  -0.04,-104.79) (   0.03,-105.04)   28.15                80
 10/21/2025   08:05:13   (  -0.04,-104.80) (  -1.02,-100.51)  489.86                80