Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 9 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)
 09/18/2025   19:24:24   (   0.24, -89.51) (   0.11, -90.18)   75.99                80
 09/19/2025   19:08:19   (   0.24, -89.52) (   1.11, -85.65)  441.13                80
 09/21/2025   07:30:06   (  -0.24, -89.48) (   0.06, -90.91)  162.70                80
 09/22/2025   07:08:41   (  -0.24, -89.49) (  -0.94, -86.38)  354.47                80
 09/23/2025   19:30:36   (   0.24, -89.54) (  -0.22, -91.68)  243.54                80
 09/24/2025   19:14:30   (   0.24, -89.55) (   0.79, -87.15)  274.09                80
 09/26/2025   07:36:17   (  -0.23, -89.52) (   0.44, -92.40)  328.64                80
 09/27/2025   07:14:52   (  -0.24, -89.53) (  -0.63, -87.88)  188.58                80
 09/28/2025   19:39:27   (   0.23, -89.58) (  -0.59, -93.17)  409.87                80
 09/29/2025   19:18:02   (   0.24, -89.59) (   0.48, -88.65)  107.78                80
 10/01/2025   07:42:28   (  -0.23, -89.57) (   0.74, -93.90)  494.08                80