Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 15.  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   19:57:19   (  71.14,-124.78) 04/16/2023   19:58:28  (  71.00,-123.33)   54.80                69
 04/16/2023   20:47:51   ( -70.53,  43.54) 04/16/2023   20:48:00  ( -70.53,  43.62)    3.04                 9
 04/16/2023   21:38:34   (  70.37,-148.89) 04/16/2023   21:37:24  (  70.39,-148.93)    2.71                70
 04/19/2023   08:50:59   (  70.59,  42.67) 04/19/2023   08:52:09  (  70.62,  42.67)    3.21                70
 04/19/2023   09:41:41   ( -70.50,-149.87) 04/19/2023   09:41:35  ( -70.47,-149.88)    2.83                 6
 04/19/2023   10:32:16   (  69.91,  18.34) 04/19/2023   10:31:06  (  69.94,  17.02)   50.66                70
 04/21/2023   21:44:49   (  70.57,-150.76) 04/21/2023   21:45:43  (  70.57,-150.81)    1.79                54
 04/21/2023   22:35:31   ( -70.48,  16.70) 04/21/2023   22:35:08  ( -70.48,  16.72)    1.14                23
 04/24/2023   10:38:39   (  70.56,  15.79) 04/24/2023   10:39:16  (  70.54,  15.74)    2.41                37
 04/24/2023   11:29:21   ( -70.46,-176.74) 04/24/2023   11:28:41  ( -70.46,-176.73)    1.01                40
 04/26/2023   23:32:29   (  70.56,-177.67) 04/26/2023   23:32:48  (  70.53,-177.69)    3.04                19
 04/27/2023   00:23:11   ( -70.46, -10.20) 04/27/2023   00:22:13  ( -70.44, -10.16)    2.70                58
 04/29/2023   11:35:40   ( -70.98,-179.13) 04/29/2023   11:36:51  ( -70.85,-178.28)   34.46                71
 04/29/2023   12:26:17   (  70.51, -11.06) 04/29/2023   12:26:18  (  70.53, -11.09)    2.10                 1
 04/29/2023   13:16:57   ( -70.31, 156.57) 04/29/2023   13:15:45  ( -70.33, 156.28)   11.20                72