Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 16.  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)
 04/16/2023   20:47:51   ( -70.51,  43.58) 04/16/2023   20:48:01  ( -70.51,  43.58)    0.14                10
 04/16/2023   21:38:35   (  70.39,-148.93) 04/16/2023   21:37:24  (  70.42,-148.89)    2.94                71
 04/19/2023   08:51:00   (  70.61,  42.63) 04/19/2023   08:52:10  (  70.59,  42.63)    3.14                70
 04/19/2023   09:41:41   ( -70.48,-149.83) 04/19/2023   09:41:35  ( -70.50,-149.85)    2.56                 6
 04/19/2023   10:32:16   (  69.89,  18.38) 04/19/2023   10:31:06  (  69.96,  17.05)   51.51                70
 04/21/2023   21:44:49   (  70.60,-150.81) 04/21/2023   21:45:42  (  70.59,-150.78)    1.31                53
 04/21/2023   22:35:30   ( -70.45,  16.74) 04/21/2023   22:35:08  ( -70.44,  16.66)    3.05                22
 04/24/2023   10:38:38   (  70.54,  15.82) 04/24/2023   10:39:15  (  70.55,  15.75)    3.05                37
 04/24/2023   11:29:20   ( -70.45,-176.71) 04/24/2023   11:28:40  ( -70.46,-176.73)    1.38                40
 04/26/2023   23:32:28   (  70.54,-177.65) 04/26/2023   23:32:46  (  70.57,-177.62)    3.36                18
 04/27/2023   00:23:10   ( -70.45, -10.18) 04/27/2023   00:22:12  ( -70.43, -10.18)    2.38                58
 04/29/2023   11:35:39   ( -70.92,-179.03) 04/29/2023   11:36:51  ( -70.81,-178.33)   28.42                72
 04/29/2023   12:26:18   (  70.56, -11.13) 04/29/2023   12:26:17  (  70.55, -11.05)    3.09                 1
 04/29/2023   13:16:57   ( -70.31, 156.58) 04/29/2023   13:15:44  ( -70.35, 156.31)   11.54                73