Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 4 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 04/14/2025   20:10:58   (   0.03,-104.41) (   0.76,-101.24)  361.21                80
 04/16/2025   08:32:43   (  -0.02,-104.37) (   0.42,-106.50)  242.24                80
 04/17/2025   08:11:17   (  -0.02,-104.37) (  -0.58,-101.96)  274.36                80
 04/18/2025   20:33:10   (   0.02,-104.39) (  -0.61,-107.25)  326.05                80
 04/19/2025   20:17:03   (   0.02,-104.39) (   0.40,-102.71)  190.84                80
 04/21/2025   08:38:49   (  -0.01,-104.35) (   0.77,-107.98)  412.29                80
 04/22/2025   08:17:22   (  -0.01,-104.35) (  -0.24,-103.44)  104.40                80
 04/23/2025   20:39:14   (   0.00,-104.37) (  -0.98,-108.72)  496.27                80
 04/24/2025   20:23:08   (   0.01,-104.37) (   0.04,-104.18)   20.81                80
 04/27/2025   08:26:07   (  -0.01,-104.33) (   0.11,-104.91)   65.05                80