Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 5 11.  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)
 05/12/2025   19:45:20   (   0.02, -91.77) (  -0.63, -94.64)  326.66                80
 05/13/2025   19:23:59   (   0.03, -92.29) (   0.50, -90.14)  244.94                80
 05/15/2025   07:48:31   (  -0.02, -93.06) (   0.54, -95.45)  272.58                80
 05/16/2025   07:27:10   (  -0.02, -93.57) (  -0.60, -90.95)  298.86                80
 05/17/2025   19:51:50   (   0.02, -94.38) (  -0.42, -96.30)  218.27                80
 05/18/2025   19:30:28   (   0.02, -94.90) (   0.72, -91.80)  353.57                80
 05/20/2025   07:55:01   (  -0.01, -95.68) (   0.31, -97.11)  163.30                80
 05/21/2025   07:33:39   (  -0.01, -96.19) (  -0.83, -92.61)  408.55                80
 05/22/2025   19:58:20   (   0.01, -97.00) (  -0.19, -97.96)  108.22                80
 05/23/2025   19:36:58   (   0.01, -97.52) (   0.95, -93.46)  463.92                80
 05/25/2025   08:01:30   (  -0.01, -98.30) (   0.07, -98.77)   52.69                80