Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 6 8.  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)
 06/08/2023   20:54:20   ( -71.28,  40.64) 06/08/2023   20:55:29  ( -71.18,  42.13)   54.23                69
 06/08/2023   21:44:54   (  70.64,-150.98) 06/08/2023   21:45:00  (  70.62,-151.06)    3.36                 6
 06/08/2023   22:35:36   ( -70.55,  16.48) 06/08/2023   22:34:25  ( -70.55,  16.49)    0.41                71
 06/11/2023   09:48:05   ( -70.75,-151.95) 06/11/2023   09:48:59  ( -70.76,-151.88)    2.67                54
 06/11/2023   10:38:49   (  70.64,  15.54) 06/11/2023   10:38:22  (  70.63,  15.58)    1.63                27
 06/13/2023   22:41:59   ( -70.70,  14.65) 06/13/2023   22:42:22  ( -70.69,  14.65)    0.51                23
 06/13/2023   23:32:43   (  70.59,-177.86) 06/13/2023   23:31:44  (  70.61,-177.81)    2.98                59
 06/16/2023   10:45:11   (  70.75,  13.77) 06/16/2023   10:46:18  (  70.76,  13.74)    1.65                67
 06/16/2023   11:35:53   ( -70.65,-178.76) 06/16/2023   11:35:44  ( -70.65,-178.77)    0.62                 9
 06/16/2023   12:26:25   (  69.91, -10.29) 06/16/2023   12:25:17  (  69.96, -12.11)   69.42                68
 06/18/2023   23:39:04   (  70.72,-179.66) 06/18/2023   23:39:38  (  70.74,-179.65)    3.10                34
 06/19/2023   00:29:46   ( -70.62, -12.18) 06/19/2023   00:29:04  ( -70.64, -12.15)    3.29                42
 06/21/2023   11:42:22   ( -71.20, 178.74) 06/21/2023   11:43:32  ( -71.08, 179.83)   41.83                70
 06/21/2023   12:32:58   (  70.69, -13.09) 06/21/2023   12:32:59  (  70.70, -13.08)    1.47                 1
 06/21/2023   13:23:39   ( -70.53, 154.48) 06/21/2023   13:22:26  ( -70.55, 154.35)    5.05                73