Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 30.  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)
 05/02/2023   00:29:39   ( -70.63, -12.09) 05/02/2023   00:30:25  ( -70.62, -12.01)    2.86                46
 05/02/2023   01:20:23   (  70.51, 155.41) 05/02/2023   01:19:49  (  70.49, 155.45)    2.71                34
 05/04/2023   13:23:35   ( -70.57, 154.52) 05/04/2023   13:23:56  ( -70.57, 154.50)    0.89                21
 05/04/2023   14:14:19   (  70.45, -37.99) 05/04/2023   14:13:19  (  70.48, -37.96)    3.35                60
 05/07/2023   01:26:49   (  70.66, 153.56) 05/07/2023   01:28:00  (  70.63, 153.55)    3.13                71
 05/07/2023   02:17:30   ( -70.52, -38.89) 05/07/2023   02:17:25  ( -70.53, -38.94)    2.63                 5
 05/07/2023   03:08:06   (  69.98, 129.25) 05/07/2023   03:06:56  (  70.01, 127.96)   49.26                70
 05/09/2023   14:20:45   (  70.62, -39.86) 05/09/2023   14:21:29  (  70.63, -39.85)    0.96                44
 05/09/2023   15:11:27   ( -70.53, 127.61) 05/09/2023   15:10:54  ( -70.53, 127.66)    2.00                33
 05/12/2023   02:24:14   ( -71.58, -42.29) 05/12/2023   02:25:20  ( -71.51, -39.55)   97.12                66
 05/12/2023   03:14:41   (  70.59, 126.70) 05/12/2023   03:14:58  (  70.60, 126.70)    1.03                17
 05/12/2023   04:05:23   ( -70.49, -65.83) 05/12/2023   04:04:23  ( -70.50, -65.78)    2.18                60