Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 8 31.  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)
 08/31/2023   03:33:08   (  70.87, 121.50) 08/31/2023   03:32:46  (  70.87, 121.46)    1.23                22
 09/02/2023   14:45:55   (  71.93, -48.48) 09/02/2023   14:47:00  (  71.83, -45.67)   97.60                65
 09/02/2023   15:36:20   ( -70.96, 120.55) 09/02/2023   15:36:39  ( -70.94, 120.56)    1.95                19
 09/02/2023   16:27:04   (  70.84, -71.94) 09/02/2023   16:26:02  (  70.86, -71.91)    2.36                62
 09/05/2023   03:39:33   (  71.02, 119.65) 09/05/2023   03:40:29  (  71.02, 119.69)    1.50                56
 09/05/2023   04:30:15   ( -70.93, -72.88) 09/05/2023   04:29:54  ( -70.91, -72.83)    3.23                21
 09/07/2023   16:33:28   (  70.94, -73.71) 09/07/2023   16:33:45  (  70.96, -73.75)    2.13                17
 09/07/2023   17:24:10   ( -70.85,  93.75) 09/07/2023   17:23:10  ( -70.84,  93.73)    1.16                60
 09/10/2023   04:36:40   ( -71.04, -74.67) 09/10/2023   04:37:37  ( -71.02, -74.65)    2.05                57
 09/10/2023   05:27:24   (  70.93,  92.83) 09/10/2023   05:27:00  (  70.92,  92.86)    1.25                24
 09/12/2023   16:40:08   (  71.85, -76.91) 09/12/2023   16:41:14  (  71.78, -74.42)   86.63                66
 09/12/2023   17:30:35   ( -70.97,  91.95) 09/12/2023   17:30:52  ( -70.97,  91.94)    0.80                17
 09/12/2023   18:21:19   (  70.86,-100.56) 09/12/2023   18:20:15  (  70.86,-100.57)    0.53                64