Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 6 8.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/21/2023   18:29:29   ( -74.61,  69.93) 06/21/2023   18:28:21  ( -74.62,  67.38)   75.44                68
 06/21/2023   19:20:24   (  75.07,-124.03) 06/21/2023   19:19:14  (  75.07,-124.05)    0.68                70
 06/21/2023   20:11:09   ( -75.09,  43.20) 06/21/2023   20:10:10  ( -75.09,  43.28)    2.22                59
 06/21/2023   21:01:54   (  75.07,-149.42) 06/21/2023   21:01:13  (  75.07,-149.53)    3.20                41
 06/21/2023   21:52:39   ( -75.10,  17.81) 06/21/2023   21:52:09  ( -75.09,  17.79)    1.25                30
 06/21/2023   22:43:25   (  75.13,-174.95) 06/21/2023   22:43:11  (  75.12,-174.88)    2.23                14
 06/21/2023   23:34:09   ( -75.11,  -7.58) 06/21/2023   23:34:07  ( -75.14,  -7.55)    3.68                 2
 06/22/2023   00:24:55   (  75.13, 159.66) 06/22/2023   00:25:10  (  75.12, 159.64)    1.05                15
 06/22/2023   01:15:40   ( -75.16, -33.11) 06/22/2023   01:16:06  ( -75.14, -33.04)    2.88                26