Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 3.  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   ( -70.99, -69.86) 04/04/2023   04:19:55  ( -70.90, -68.71)   43.21                70
 04/04/2023   05:09:21   (  70.46,  98.31) 04/04/2023   05:09:24  (  70.46,  98.30)    0.31                 3
 04/04/2023   06:00:03   ( -70.37, -94.24) 04/04/2023   05:58:50  ( -70.34, -94.22)    3.14                73
 04/06/2023   17:12:29   ( -70.59,  97.32) 04/06/2023   17:13:38  ( -70.58,  97.39)    2.87                69
 04/06/2023   18:03:12   (  70.43, -95.12) 04/06/2023   18:03:02  (  70.41, -95.20)    3.47                10
 04/06/2023   18:53:45   ( -69.87,  73.07) 04/06/2023   18:52:35  ( -69.91,  71.75)   50.74                70
 04/09/2023   06:06:20   ( -70.57, -96.12) 04/09/2023   06:07:15  ( -70.55, -96.09)    3.04                55
 04/09/2023   06:57:03   (  70.42,  71.44) 04/09/2023   06:56:38  (  70.44,  71.41)    2.62                25
 04/11/2023   19:00:10   ( -70.51,  70.51) 04/11/2023   19:00:51  ( -70.53,  70.46)    2.39                41
 04/11/2023   19:50:54   (  70.41,-122.02) 04/11/2023   19:50:14  (  70.42,-122.04)    1.09                40
 04/14/2023   07:54:00   ( -70.52,-122.97) 04/14/2023   07:54:25  ( -70.52,-122.97)    0.39                25
 04/14/2023   08:44:44   (  70.42,  44.50) 04/14/2023   08:43:48  (  70.41,  44.53)    1.24                56
 04/16/2023   19:57:18   (  71.10,-124.71) 04/16/2023   19:58:27  (  70.98,-123.36)   51.03                69
 04/16/2023   20:47:51   ( -70.53,  43.55) 04/16/2023   20:47:59  ( -70.52,  43.61)    2.77                 8
 04/16/2023   21:38:34   (  70.38,-148.91) 04/16/2023   21:37:23  (  70.36,-148.96)    3.46                71