Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 23.  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)
 01/23/2023   04:50:59   ( -70.35, -76.73) 01/23/2023   04:51:46  ( -70.37, -76.72)    2.64                47
 01/23/2023   05:41:43   (  70.23,  90.76) 01/23/2023   05:41:10  (  70.25,  90.77)    2.59                33
 01/25/2023   17:44:53   ( -70.36,  89.76) 01/25/2023   17:45:46  ( -70.36,  89.74)    1.14                53
 01/25/2023   18:35:37   (  70.25,-102.76) 01/25/2023   18:35:10  (  70.23,-102.78)    2.23                27
 01/28/2023   06:38:47   ( -70.39,-103.76) 01/28/2023   06:39:44  ( -70.41,-103.70)    3.08                57
 01/28/2023   07:29:31   (  70.28,  63.72) 01/28/2023   07:29:08  (  70.28,  63.77)    2.11                23
 01/28/2023   08:19:56   ( -69.29,-127.50) 01/28/2023   08:18:49  ( -69.33,-129.87)   93.36                67
 01/30/2023   19:32:40   ( -70.38,  62.78) 01/30/2023   19:33:43  ( -70.37,  62.72)    2.53                63
 01/30/2023   20:23:23   (  70.27,-129.75) 01/30/2023   20:23:05  (  70.28,-129.74)    1.24                18
 01/30/2023   21:13:51   ( -69.44,  38.81) 01/30/2023   21:12:43  ( -69.51,  36.84)   77.20                68
 02/02/2023   08:26:32   ( -70.38,-130.70) 02/02/2023   08:27:39  ( -70.39,-130.75)    2.48                67
 02/02/2023   09:17:16   (  70.27,  36.78) 02/02/2023   09:17:02  (  70.30,  36.78)    2.90                14
 02/02/2023   10:07:47   ( -69.60,-154.89) 02/02/2023   10:06:38  ( -69.64,-156.49)   62.13                69
 02/04/2023   21:20:26   ( -70.44,  35.73) 02/04/2023   21:21:35  ( -70.42,  35.79)    2.78                69
 02/04/2023   22:11:09   (  70.28,-156.72) 02/04/2023   22:10:59  (  70.27,-156.77)    2.21                10