Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 6 27.  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)
 06/28/2025   20:02:17   (   0.02, -96.35) (  -0.71, -99.53)  363.39                80
 06/29/2025   19:46:12   (   0.02, -95.82) (   0.22, -94.99)   95.00                80
 07/02/2025   07:46:30   (  -0.02, -94.45) (   0.23, -95.67)  137.53                80
 07/03/2025   07:30:24   (  -0.02, -93.92) (  -0.65, -91.11)  321.20                80
 07/04/2025   19:49:38   (   0.02, -93.13) (  -0.73, -96.37)  369.87                80
 07/05/2025   19:33:33   (   0.02, -92.60) (   0.21, -91.83)   88.83                80
 07/08/2025   07:33:52   (  -0.03, -91.24) (   0.23, -92.51)  143.53                80
 07/09/2025   07:17:45   (  -0.03, -90.71) (  -0.65, -87.95)  315.18                80
 07/10/2025   19:36:59   (   0.04, -89.92) (  -0.72, -93.21)  375.82                80
 07/11/2025   19:20:54   (   0.04, -89.39) (   0.22, -88.67)   83.12                80