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)
 04/14/2023   07:54:01   ( -70.55,-123.01) 04/14/2023   07:54:26  ( -70.53,-122.96)    2.47                25
 04/14/2023   08:44:44   (  70.38,  44.55) 04/14/2023   08:43:50  (  70.38,  44.48)    2.90                54
 04/16/2023   19:57:19   (  71.11,-124.73) 04/16/2023   19:58:28  (  71.04,-123.26)   53.64                69
 04/16/2023   20:47:51   ( -70.50,  43.59) 04/16/2023   20:48:01  ( -70.53,  43.61)    2.96                10
 04/16/2023   21:38:35   (  70.39,-148.93) 04/16/2023   21:37:25  (  70.37,-148.95)    2.40                70
 04/19/2023   08:51:00   (  70.61,  42.64) 04/19/2023   08:52:10  (  70.62,  42.68)    2.32                70
 04/19/2023   09:41:42   ( -70.51,-149.90) 04/19/2023   09:41:36  ( -70.49,-149.87)    3.29                 6
 04/19/2023   10:32:17   (  69.93,  18.31) 04/19/2023   10:31:07  (  69.95,  17.03)   49.10                70
 04/21/2023   21:44:50   (  70.58,-150.78) 04/21/2023   21:45:44  (  70.61,-150.76)    3.15                54
 04/21/2023   22:35:32   ( -70.49,  16.68) 04/21/2023   22:35:10  ( -70.47,  16.70)    1.75                22
 04/24/2023   10:38:39   (  70.56,  15.78) 04/24/2023   10:39:17  (  70.56,  15.76)    0.66                38
 04/24/2023   11:29:21   ( -70.47,-176.75) 04/24/2023   11:28:42  ( -70.48,-176.71)    2.09                39