Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 3 16.  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)
 03/17/2023   10:52:25   (  70.97,  11.80) 03/17/2023   10:53:35  (  70.85,  12.99)   45.03                70
 03/17/2023   11:42:58   ( -70.40,-179.97) 03/17/2023   11:43:07  ( -70.43,-179.99)    3.13                 9
 03/17/2023   12:33:42   (  70.29, -12.48) 03/17/2023   12:32:30  (  70.30, -12.51)    1.34                72
 03/19/2023   23:46:11   (  70.59, 178.94) 03/19/2023   23:47:23  (  70.56, 179.10)    7.13                72
 03/20/2023   00:36:51   ( -70.39, -13.43) 03/20/2023   00:36:50  ( -70.42, -13.46)    2.73                 1
 03/20/2023   01:27:29   (  69.97, 154.54) 03/20/2023   01:26:18  (  70.01, 153.62)   35.01                71
 03/22/2023   12:40:02   (  70.49, -14.38) 03/22/2023   12:41:06  (  70.50, -14.44)    2.22                64
 03/22/2023   13:30:44   ( -70.40, 153.09) 03/22/2023   13:30:32  ( -70.41, 153.08)    1.18                12
 03/22/2023   14:21:13   (  69.55, -38.32) 03/22/2023   14:20:06  (  69.61, -40.37)   79.60                67
 03/25/2023   01:33:54   (  70.51, 152.11) 03/25/2023   01:34:46  (  70.49, 152.11)    2.27                52
 03/25/2023   02:24:36   ( -70.41, -40.41) 03/25/2023   02:24:12  ( -70.40, -40.37)    1.97                24
 03/27/2023   14:27:46   (  70.49, -41.33) 03/27/2023   14:28:26  (  70.50, -41.32)    0.38                40
 03/27/2023   15:18:28   ( -70.39, 126.15) 03/27/2023   15:17:52  ( -70.41, 126.19)    2.32                36
 03/30/2023   03:21:38   (  70.48, 125.22) 03/30/2023   03:22:05  (  70.50, 125.25)    2.61                27
 03/30/2023   04:12:20   ( -70.38, -67.31) 03/30/2023   04:11:32  ( -70.36, -67.31)    2.56                48