Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 5 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/21/2025   07:33:39   (  -0.02, -96.20) (  -0.83, -92.61)  409.69                80
 05/22/2025   19:58:19   (   0.01, -97.02) (  -0.18, -97.96)  106.10                80
 05/23/2025   19:36:58   (   0.01, -97.54) (   0.96, -93.46)  466.19                80
 05/25/2025   08:01:29   (  -0.01, -98.32) (   0.12, -98.76)   50.60                80
 05/27/2025   20:02:08   (   0.01, -99.65) (   0.02, -99.61)    4.84                80
 05/30/2025   08:05:18   (  -0.01,-100.95) (  -0.10,-100.41)   60.49                80
 05/31/2025   20:29:58   (   0.01,-101.76) (  -0.91,-105.76)  455.90                80
 06/01/2025   20:08:37   (   0.01,-102.29) (   0.25,-101.26)  116.84                80
 06/03/2025   08:33:08   (  -0.00,-103.08) (   0.81,-106.57)  398.30                80