Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 7.  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   ( -70.55, -96.08) 04/09/2023   06:07:15  ( -70.53, -96.12)    2.46                56
 04/09/2023   06:57:03   (  70.44,  71.41) 04/09/2023   06:56:38  (  70.42,  71.39)    1.60                25
 04/11/2023   19:00:10   ( -70.53,  70.47) 04/11/2023   19:00:51  ( -70.53,  70.45)    1.14                41
 04/11/2023   19:50:54   (  70.43,-122.05) 04/11/2023   19:50:14  (  70.42,-122.04)    0.67                40
 04/14/2023   07:54:01   ( -70.53,-122.99) 04/14/2023   07:54:26  ( -70.54,-122.94)    2.20                25
 04/14/2023   08:44:45   (  70.43,  44.49) 04/14/2023   08:43:49  (  70.44,  44.56)    3.21                56
 04/16/2023   19:57:19   (  71.10,-124.72) 04/16/2023   19:58:28  (  71.04,-123.27)   52.87                69
 04/16/2023   20:47:52   ( -70.54,  43.53) 04/16/2023   20:48:01  ( -70.53,  43.61)    3.19                 9
 04/16/2023   21:38:35   (  70.38,-148.91) 04/16/2023   21:37:25  (  70.37,-148.96)    2.54                70
 04/19/2023   08:50:59   (  70.60,  42.65) 04/19/2023   08:52:09  (  70.60,  42.66)    0.64                70
 04/19/2023   09:41:41   ( -70.50,-149.87) 04/19/2023   09:41:35  ( -70.47,-149.88)    3.11                 6
 04/19/2023   10:32:15   (  69.87,  18.41) 04/19/2023   10:31:06  (  69.93,  17.01)   53.83                69