Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 8 18.  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)
 08/20/2025   07:27:37   (  -0.18, -89.47) (   0.18, -90.95)  169.30                80
 08/21/2025   07:11:33   (  -0.18, -89.48) (  -0.85, -86.42)  347.53                80
 08/22/2025   19:30:49   (   0.18, -89.53) (  -0.31, -91.73)  250.72                80
 08/23/2025   19:14:45   (   0.18, -89.54) (   0.72, -87.20)  266.81                80
 08/25/2025   07:36:32   (  -0.19, -89.51) (   0.49, -92.47)  337.29                80
 08/26/2025   07:15:08   (  -0.19, -89.52) (  -0.54, -87.94)  180.43                80
 08/27/2025   19:37:04   (   0.19, -89.59) (  -0.60, -93.25)  416.91                80
 08/28/2025   19:20:58   (   0.19, -89.60) (   0.38, -88.71)  101.06                80
 08/31/2025   07:21:22   (  -0.20, -89.59) (  -0.26, -89.46)   15.60                80