Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 8.  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)
 04/09/2023   06:06:19   ( -70.53, -96.06) 04/09/2023   06:07:15  ( -70.54, -96.10)    2.01                56
 04/09/2023   06:57:03   (  70.42,  71.43) 04/09/2023   06:56:38  (  70.44,  71.41)    2.43                25
 04/11/2023   19:00:10   ( -70.52,  70.50) 04/11/2023   19:00:51  ( -70.55,  70.48)    3.23                41
 04/11/2023   19:50:54   (  70.41,-122.02) 04/11/2023   19:50:15  (  70.39,-122.09)    3.38                39
 04/14/2023   07:54:01   ( -70.51,-122.96) 04/14/2023   07:54:27  ( -70.52,-122.98)    0.92                26
 04/14/2023   08:44:45   (  70.41,  44.52) 04/14/2023   08:43:50  (  70.42,  44.53)    1.11                55
 04/16/2023   19:57:19   (  71.14,-124.77) 04/16/2023   19:58:28  (  71.03,-123.29)   54.85                69
 04/16/2023   20:47:51   ( -70.52,  43.56) 04/16/2023   20:48:01  ( -70.51,  43.59)    1.08                10
 04/16/2023   21:38:35   (  70.41,-148.96) 04/16/2023   21:37:24  (  70.41,-148.90)    2.35                71
 04/19/2023   08:51:00   (  70.63,  42.61) 04/19/2023   08:52:10  (  70.61,  42.66)    2.80                70
 04/19/2023   09:41:41   ( -70.48,-149.84) 04/19/2023   09:41:36  ( -70.48,-149.88)    1.49                 5
 04/19/2023   10:32:16   (  69.90,  18.36) 04/19/2023   10:31:06  (  69.99,  17.09)   49.63                70
 04/21/2023   21:44:50   (  70.60,-150.81) 04/21/2023   21:45:44  (  70.60,-150.77)    1.67                54
 04/21/2023   22:35:31   ( -70.45,  16.74) 04/21/2023   22:35:10  ( -70.47,  16.69)    2.87                21