Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 5 3.  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)
 05/04/2023   12:33:10   (  71.56, -14.48) 05/04/2023   12:34:16  (  71.47, -11.76)   96.44                66
 05/04/2023   13:23:35   ( -70.59, 154.48) 05/04/2023   13:23:55  ( -70.59, 154.54)    2.17                20
 05/04/2023   14:14:19   (  70.47, -38.01) 05/04/2023   14:13:19  (  70.46, -38.00)    0.98                60
 05/07/2023   01:26:50   (  70.67, 153.54) 05/07/2023   01:28:00  (  70.66, 153.59)    2.32                70
 05/07/2023   02:17:31   ( -70.54, -38.92) 05/07/2023   02:17:25  ( -70.56, -38.91)    2.59                 6
 05/07/2023   03:08:06   (  69.94, 129.31) 05/07/2023   03:06:56  (  70.03, 128.00)   51.09                70
 05/09/2023   14:20:46   (  70.63, -39.88) 05/09/2023   14:21:29  (  70.65, -39.82)    3.15                43
 05/09/2023   15:11:26   ( -70.49, 127.67) 05/09/2023   15:10:54  ( -70.50, 127.60)    2.50                32
 05/12/2023   02:24:14   ( -71.59, -42.31) 05/12/2023   02:25:20  ( -71.46, -39.62)   95.95                66
 05/12/2023   03:14:41   (  70.59, 126.70) 05/12/2023   03:14:57  (  70.61, 126.73)    2.49                16
 05/12/2023   04:05:23   ( -70.50, -65.84) 05/12/2023   04:04:22  ( -70.51, -65.76)    3.31                61
 05/14/2023   15:17:53   ( -70.67, 125.77) 05/14/2023   15:19:02  ( -70.69, 125.79)    2.67                69
 05/14/2023   16:08:37   (  70.56, -66.74) 05/14/2023   16:08:26  (  70.54, -66.77)    2.07                11
 05/14/2023   16:59:09   ( -69.94, 101.54) 05/14/2023   16:57:59  ( -70.01, 100.13)   54.38                70