Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2025 4 18.  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)
 04/20/2025   11:50:43   (  74.37,  -9.45) 04/20/2025   11:51:49  (  74.22,  -6.70)   84.26                66
 04/20/2025   12:41:12   ( -73.60, 159.74) 04/20/2025   12:41:21  ( -73.61, 159.63)    3.60                 9
 04/20/2025   13:31:54   (  73.44, -32.58) 04/20/2025   13:30:42  (  73.48, -32.97)   13.16                72
 04/22/2025   23:02:48   (  73.64,-175.75) 04/22/2025   23:03:14  (  73.66,-175.79)    2.94                26
 04/22/2025   23:53:31   ( -73.56,  -8.25) 04/22/2025   23:52:36  ( -73.58,  -8.30)    2.31                55
 04/25/2025   09:24:24   ( -73.67,-151.21) 04/25/2025   09:25:10  ( -73.68,-151.28)    2.51                46
 04/25/2025   10:15:08   (  73.61,  16.24) 04/25/2025   10:14:30  (  73.58,  16.19)    3.12                38
 04/27/2025   19:46:01   (  73.72,-126.75) 04/27/2025   19:47:02  (  73.74,-126.66)    3.51                61
 04/27/2025   20:36:44   ( -73.64,  40.75) 04/27/2025   20:36:25  ( -73.62,  40.75)    2.30                19
 04/30/2025   06:07:43   ( -74.07,-102.98) 04/30/2025   06:08:53  ( -73.97,-101.71)   40.41                70
 04/30/2025   06:58:20   (  73.66,  65.31) 04/30/2025   06:58:17  (  73.64,  65.27)    2.42                 3