Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 4 24.  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)
 04/24/2023   10:38:39   (  70.56,  15.78) 04/24/2023   10:39:15  (  70.56,  15.77)    0.58                36
 04/24/2023   11:29:21   ( -70.48,-176.77) 04/24/2023   11:28:40  ( -70.46,-176.72)    2.71                41
 04/26/2023   22:42:01   ( -71.53,  13.37) 04/26/2023   22:43:07  ( -71.46,  16.09)   96.45                66
 04/26/2023   23:32:28   (  70.54,-177.64) 04/26/2023   23:32:45  (  70.55,-177.64)    1.79                17
 04/27/2023   00:23:10   ( -70.45, -10.19) 04/27/2023   00:22:10  ( -70.45, -10.13)    2.00                60
 04/29/2023   11:35:36   ( -70.86,-178.92) 04/29/2023   11:36:47  ( -70.77,-178.38)   22.22                71
 04/29/2023   12:26:16   (  70.54, -11.10) 04/29/2023   12:26:13  (  70.51, -11.09)    2.87                 3
 04/29/2023   13:16:53   ( -70.19, 156.77) 04/29/2023   13:15:41  ( -70.25, 156.18)   23.19                72
 05/02/2023   00:29:20   ( -70.62, -11.99) 05/02/2023   00:30:16  ( -70.64, -11.96)    2.73                56
 05/02/2023   01:20:04   (  70.51, 155.49) 05/02/2023   01:19:40  (  70.49, 155.49)    2.20                24
 05/04/2023   13:23:08   ( -70.61, 154.57) 05/04/2023   13:23:42  ( -70.59, 154.59)    2.84                34
 05/04/2023   14:13:52   (  70.51, -37.96) 05/04/2023   14:13:05  (  70.49, -37.89)    3.18                47
 05/07/2023   01:26:24   (  71.25, 152.74) 05/07/2023   01:27:32  (  71.14, 154.41)   60.91                68
 05/07/2023   02:16:55   ( -70.58, -38.83) 05/07/2023   02:17:06  ( -70.55, -38.83)    2.67                11
 05/07/2023   03:07:39   (  70.48, 128.64) 05/07/2023   03:06:29  (  70.45, 128.68)    3.09                70