Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 9 19.  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)
 09/19/2025   19:08:18   (   0.24, -89.52) (   1.08, -85.64)  441.05                80
 09/21/2025   07:30:06   (  -0.24, -89.48) (   0.09, -90.91)  162.82                80
 09/22/2025   07:08:40   (  -0.24, -89.49) (  -0.91, -86.37)  354.27                80
 09/23/2025   19:30:35   (   0.24, -89.54) (  -0.25, -91.67)  243.94                80
 09/24/2025   19:14:30   (   0.24, -89.54) (   0.76, -87.14)  273.60                80
 09/26/2025   07:36:17   (  -0.23, -89.52) (   0.40, -92.41)  329.17                80
 09/27/2025   07:14:52   (  -0.24, -89.52) (  -0.60, -87.87)  187.95                80
 09/28/2025   19:36:47   (   0.23, -89.57) (  -0.55, -93.18)  410.69                80
 09/29/2025   19:20:42   (   0.24, -89.58) (   0.46, -88.64)  106.85                80
 10/01/2025   07:42:28   (  -0.23, -89.56) (   0.76, -93.90)  495.01                80
 10/02/2025   07:21:04   (  -0.24, -89.56) (  -0.32, -89.38)   22.51                80