Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 11.  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)
 04/11/2023   19:00:10   ( -70.52,  70.50) 04/11/2023   19:00:51  ( -70.54,  70.48)    3.01                41
 04/11/2023   19:50:54   (  70.40,-122.01) 04/11/2023   19:50:15  (  70.39,-122.09)    3.25                39
 04/14/2023   07:54:00   ( -70.51,-122.96) 04/14/2023   07:54:26  ( -70.51,-122.99)    1.05                26
 04/14/2023   08:44:44   (  70.40,  44.52) 04/14/2023   08:43:49  (  70.41,  44.52)    1.05                55
 04/16/2023   19:57:19   (  71.13,-124.77) 04/16/2023   19:58:28  (  71.02,-123.30)   54.42                69
 04/16/2023   20:47:51   ( -70.52,  43.57) 04/16/2023   20:48:01  ( -70.50,  43.58)    1.50                10
 04/16/2023   21:38:35   (  70.41,-148.96) 04/16/2023   21:37:24  (  70.40,-148.91)    1.91                71
 04/19/2023   08:51:00   (  70.62,  42.61) 04/19/2023   08:52:10  (  70.60,  42.65)    2.93                70
 04/19/2023   09:41:41   ( -70.48,-149.84) 04/19/2023   09:41:36  ( -70.47,-149.90)    2.62                 5
 04/19/2023   10:32:16   (  69.90,  18.37) 04/19/2023   10:31:06  (  69.98,  17.07)   50.23                70
 04/21/2023   21:44:50   (  70.59,-150.81) 04/21/2023   21:45:44  (  70.59,-150.79)    1.25                54
 04/21/2023   22:35:32   ( -70.50,  16.66) 04/21/2023   22:35:09  ( -70.50,  16.74)    3.04                23
 04/24/2023   10:38:40   (  70.57,  15.76) 04/24/2023   10:39:17  (  70.59,  15.81)    2.78                37
 04/24/2023   11:29:22   ( -70.48,-176.77) 04/24/2023   11:28:43  ( -70.46,-176.74)    2.44                39