Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 1 21.  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)
 01/21/2025   08:27:05   (   0.03,-104.70) (   0.11,-105.04)   38.60                80
 01/22/2025   08:05:38   (   0.03,-104.72) (  -0.90,-100.50)  480.35                80
 01/23/2025   20:27:29   (  -0.04,-104.69) (  -0.31,-105.78)  125.46                80
 01/24/2025   20:11:22   (  -0.04,-104.70) (   0.70,-101.24)  393.79                80
 01/26/2025   08:33:06   (   0.05,-104.77) (   0.43,-106.50)  197.04                80
 01/27/2025   08:11:38   (   0.05,-104.78) (  -0.59,-101.96)  321.68                80
 01/28/2025   20:33:30   (  -0.06,-104.74) (  -0.60,-107.25)  285.00                80
 01/29/2025   20:17:22   (  -0.06,-104.76) (   0.43,-102.71)  234.11                80
 01/31/2025   08:39:06   (   0.06,-104.83) (   0.74,-107.96)  356.07                80
 02/01/2025   08:17:37   (   0.06,-104.85) (  -0.23,-103.41)  162.86                80
 02/02/2025   20:39:28   (  -0.06,-104.80) (  -0.94,-108.70)  444.01                80
 02/03/2025   20:23:21   (  -0.06,-104.82) (   0.10,-104.16)   75.24                80