Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 1.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/04/2023   04:18:45   ( -70.97, -69.83) 04/04/2023   04:19:56  ( -70.86, -68.76)   40.66                71
 04/04/2023   05:09:22   (  70.49,  98.25) 04/04/2023   05:09:24  (  70.48,  98.32)    3.23                 2
 04/04/2023   06:00:03   ( -70.35, -94.20) 04/04/2023   05:58:50  ( -70.36, -94.19)    1.18                73
 04/06/2023   17:12:29   ( -70.58,  97.34) 04/06/2023   17:13:38  ( -70.59,  97.40)    2.30                69
 04/06/2023   18:03:13   (  70.47, -95.18) 04/06/2023   18:03:01  (  70.47, -95.11)    2.51                12
 04/06/2023   18:53:44   ( -69.85,  73.09) 04/06/2023   18:52:34  ( -69.92,  71.75)   51.66                70
 04/09/2023   06:06:19   ( -70.56, -96.10) 04/09/2023   06:07:14  ( -70.53, -96.10)    3.06                55
 04/09/2023   06:57:02   (  70.40,  71.46) 04/09/2023   06:56:37  (  70.42,  71.39)    3.06                25
 04/11/2023   19:00:10   ( -70.56,  70.43) 04/11/2023   19:00:49  ( -70.54,  70.49)    2.78                39
 04/11/2023   19:50:53   (  70.41,-122.01) 04/11/2023   19:50:12  (  70.43,-122.02)    2.59                41
 04/14/2023   07:54:00   ( -70.52,-122.97) 04/14/2023   07:54:24  ( -70.50,-122.99)    2.21                24
 04/14/2023   08:44:44   (  70.42,  44.50) 04/14/2023   08:43:47  (  70.39,  44.51)    3.45                57