Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 5.  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)
 04/06/2023   17:12:28   ( -70.57,  97.36) 04/06/2023   17:13:38  ( -70.55,  97.35)    1.50                70
 04/06/2023   18:03:12   (  70.46, -95.16) 04/06/2023   18:03:01  (  70.44, -95.15)    1.28                11
 04/06/2023   18:53:45   ( -69.89,  73.03) 04/06/2023   18:52:34  ( -69.94,  71.78)   47.73                71
 04/09/2023   06:06:19   ( -70.54, -96.08) 04/09/2023   06:07:15  ( -70.53, -96.12)    2.50                56
 04/09/2023   06:57:03   (  70.44,  71.41) 04/09/2023   06:56:38  (  70.42,  71.38)    2.16                25
 04/11/2023   19:00:10   ( -70.53,  70.48) 04/11/2023   19:00:51  ( -70.52,  70.44)    2.11                41
 04/11/2023   19:50:54   (  70.42,-122.04) 04/11/2023   19:50:14  (  70.41,-122.06)    1.95                40
 04/14/2023   07:54:01   ( -70.53,-122.98) 04/14/2023   07:54:26  ( -70.52,-122.97)    0.54                25
 04/14/2023   08:44:45   (  70.42,  44.49) 04/14/2023   08:43:49  (  70.41,  44.53)    1.75                56
 04/16/2023   19:57:19   (  71.10,-124.71) 04/16/2023   19:58:28  (  71.00,-123.33)   51.19                69
 04/16/2023   20:47:51   ( -70.48,  43.63) 04/16/2023   20:48:01  ( -70.49,  43.56)    2.82                10
 04/16/2023   21:38:35   (  70.38,-148.90) 04/16/2023   21:37:24  (  70.38,-148.94)    1.31                71