Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 1 17.  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   20:41:52   (  -0.02,-104.65) (   0.00,-109.08)  492.87                 0
 01/18/2025   20:24:09   (  -0.02,-104.65) (   0.06,-104.33)   37.51                80
 01/21/2025   08:27:06   (   0.03,-104.72) (   0.10,-105.04)   37.14                80
 01/22/2025   08:05:38   (   0.03,-104.72) (  -0.91,-100.50)  480.35                80
 01/23/2025   20:27:29   (  -0.03,-104.66) (  -0.30,-105.78)  128.23                80
 01/24/2025   20:11:22   (  -0.03,-104.66) (   0.71,-101.24)  389.54                80
 01/26/2025   08:33:06   (   0.04,-104.72) (   0.43,-106.50)  202.79                80
 01/27/2025   08:11:39   (   0.04,-104.72) (  -0.58,-101.96)  314.46                80
 01/28/2025   20:33:30   (  -0.05,-104.66) (  -0.62,-107.25)  295.04                80
 01/29/2025   20:17:23   (  -0.05,-104.66) (   0.40,-102.71)  222.59                80
 01/31/2025   08:39:06   (   0.06,-104.72) (   0.78,-107.96)  369.05                80