Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 7 20.  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)
 07/21/2023   18:15:15   (  70.86, -98.96) 07/21/2023   18:16:08  (  70.84, -98.98)    2.34                53
 07/21/2023   19:05:57   ( -70.76,  68.51) 07/21/2023   19:05:33  ( -70.77,  68.57)    2.32                24
 07/24/2023   06:18:40   ( -71.79,-101.37) 07/24/2023   06:19:46  ( -71.70, -98.62)   96.32                66
 07/24/2023   07:09:07   (  70.81,  67.65) 07/24/2023   07:09:23  (  70.80,  67.62)    1.65                16
 07/24/2023   07:59:49   ( -70.71,-124.87) 07/24/2023   07:58:48  ( -70.73,-124.83)    2.83                61
 07/26/2023   19:12:15   ( -70.86,  66.78) 07/26/2023   19:13:15  ( -70.87,  66.73)    2.08                60
 07/26/2023   20:02:59   (  70.76,-125.75) 07/26/2023   20:02:37  (  70.78,-125.74)    2.23                22
 07/26/2023   20:53:24   ( -69.77,  43.12) 07/26/2023   20:52:18  ( -69.83,  40.56)   98.65                66
 07/29/2023   08:06:07   ( -70.82,-126.63) 07/29/2023   08:06:29  ( -70.82,-126.67)    1.76                22
 07/29/2023   08:56:51   (  70.72,  40.84) 07/29/2023   08:55:51  (  70.74,  40.86)    1.97                60
 07/31/2023   20:09:16   (  70.89,-127.53) 07/31/2023   20:10:16  (  70.88,-127.57)    1.76                60
 07/31/2023   20:59:58   ( -70.78,  39.96) 07/31/2023   20:59:41  ( -70.81,  39.97)    2.73                17