Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 9 23.  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)
 09/24/2025   19:14:30   (   0.24, -89.54) (   0.76, -87.14)  273.42                80
 09/26/2025   07:36:17   (  -0.23, -89.51) (   0.39, -92.41)  329.46                80
 09/27/2025   07:14:52   (  -0.24, -89.52) (  -0.62, -87.87)  187.61                80
 09/28/2025   19:39:26   (   0.23, -89.56) (  -0.58, -93.16)  411.14                80
 09/29/2025   19:20:41   (   0.24, -89.57) (   0.43, -88.63)  106.34                80
 10/01/2025   07:42:27   (  -0.23, -89.55) (   0.76, -93.89)  495.56                80
 10/02/2025   07:21:01   (  -0.24, -89.55) (  -0.26, -89.36)   21.88                80
 10/04/2025   19:24:11   (   0.24, -89.61) (   0.15, -90.13)   58.92                80
 10/05/2025   19:05:26   (   0.25, -89.62) (   1.17, -85.60)  459.28                80
 10/07/2025   07:29:51   (  -0.23, -89.61) (   0.06, -90.85)  141.19                80