Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 1 16.  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)
 01/17/2025   20:40:15   (  -0.03,-104.65) (  -1.00,-108.86)  480.24                80
 01/18/2025   20:24:09   (  -0.03,-104.65) (   0.06,-104.33)   37.71                80
 01/21/2025   08:27:06   (   0.04,-104.72) (   0.10,-105.04)   36.83                80
 01/22/2025   08:05:38   (   0.04,-104.72) (  -0.90,-100.50)  480.68                80
 01/23/2025   20:27:29   (  -0.04,-104.66) (  -0.31,-105.78)  127.99                80
 01/24/2025   20:11:22   (  -0.05,-104.67) (   0.70,-101.24)  389.79                80
 01/26/2025   08:33:06   (   0.05,-104.73) (   0.45,-106.50)  202.41                80
 01/27/2025   08:11:39   (   0.06,-104.72) (  -0.57,-101.96)  314.84                80
 01/28/2025   20:33:30   (  -0.06,-104.66) (  -0.64,-107.24)  294.77                80
 01/29/2025   20:17:23   (  -0.06,-104.66) (   0.38,-102.70)  222.85                80