Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 7 14.  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)
 07/16/2025   19:24:30   (   0.06, -89.51) (  -0.11, -90.18)   76.70                80
 07/17/2025   19:08:26   (   0.05, -89.52) (   0.89, -85.65)  439.90                80
 07/19/2025   07:27:34   (  -0.06, -89.50) (   0.24, -90.93)  163.17                80
 07/20/2025   07:11:30   (  -0.06, -89.50) (  -0.76, -86.40)  353.32                80
 07/21/2025   19:30:47   (   0.07, -89.53) (  -0.42, -91.71)  248.89                80
 07/22/2025   19:14:43   (   0.07, -89.53) (   0.59, -87.18)  267.69                80
 07/24/2025   07:33:51   (  -0.09, -89.51) (   0.55, -92.45)  335.17                80
 07/25/2025   07:17:46   (  -0.08, -89.52) (  -0.46, -87.92)  181.93                80
 07/26/2025   19:37:04   (   0.09, -89.56) (  -0.72, -93.23)  418.85                80
 07/27/2025   19:20:59   (   0.09, -89.57) (   0.30, -88.70)   98.81                80