Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 9 26.  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)
 09/27/2023   19:31:15   ( -71.41,  61.06) 09/27/2023   19:32:26  ( -71.28,  61.81)   30.55                71
 09/27/2023   20:21:53   (  70.98,-130.90) 09/27/2023   20:21:52  (  70.99,-130.97)    3.16                 1
 09/27/2023   21:12:32   ( -70.74,  36.82) 09/27/2023   21:11:19  ( -70.79,  36.38)   17.27                73
 09/30/2023   08:25:03   ( -71.05,-131.81) 09/30/2023   08:25:39  ( -71.06,-131.84)    1.69                36
 09/30/2023   09:15:47   (  70.94,  35.69) 09/30/2023   09:15:02  (  70.93,  35.62)    2.68                45
 10/02/2023   20:28:15   (  71.11,-132.71) 10/02/2023   20:29:23  (  71.10,-132.74)    1.36                68
 10/02/2023   21:18:57   ( -71.02,  34.77) 10/02/2023   21:18:48  ( -71.03,  34.80)    1.75                 9
 10/02/2023   22:09:29   (  70.28,-156.72) 10/02/2023   22:08:21  (  70.34,-158.57)   69.55                68
 10/05/2023   09:22:08   (  71.09,  33.85) 10/05/2023   09:22:30  (  71.08,  33.91)    2.77                22
 10/05/2023   10:12:49   ( -70.94,-158.59) 10/05/2023   10:11:56  ( -70.96,-158.63)    1.85                53
 10/07/2023   21:25:17   ( -71.13,  32.99) 10/07/2023   21:26:16  ( -71.11,  32.99)    2.35                59
 10/07/2023   22:16:01   (  71.03,-159.53) 10/07/2023   22:15:38  (  71.01,-159.50)    2.75                23