Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 6 16.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/16/2025   03:54:40   (  71.08, 116.14) 06/16/2025   03:53:47  (  71.11, 116.18)    3.02                53
 06/16/2025   04:45:24   ( -71.13, -76.62) 06/16/2025   04:44:51  ( -71.11, -76.59)    2.60                33
 06/16/2025   05:36:11   (  71.14,  90.67) 06/16/2025   05:35:43  (  71.13,  90.73)    2.47                28
 06/16/2025   06:26:54   ( -71.13,-102.00) 06/16/2025   06:26:47  ( -71.13,-102.03)    1.14                 7
 06/16/2025   07:17:41   (  71.14,  65.29) 06/16/2025   07:17:39  (  71.15,  65.29)    1.36                 2
 06/16/2025   08:08:25   ( -71.19,-127.47) 06/16/2025   08:08:42  ( -71.20,-127.38)    3.66                17
 06/16/2025   08:59:12   (  71.19,  39.82) 06/16/2025   08:59:35  (  71.17,  39.85)    2.43                23
 06/16/2025   09:49:55   ( -71.19,-152.85) 06/16/2025   09:50:39  ( -71.17,-152.92)    2.92                44
 06/16/2025   10:40:42   (  71.20,  14.44) 06/16/2025   10:41:31  (  71.20,  14.41)    1.22                49
 06/16/2025   11:31:26   ( -71.24,-178.32) 06/16/2025   11:32:34  ( -71.25,-178.27)    1.84                68
 06/16/2025   12:22:13   (  71.25, -11.03) 06/16/2025   12:23:27  (  71.22, -11.04)    3.54                74
 06/16/2025   13:13:10   ( -71.97, 155.00) 06/16/2025   13:14:17  ( -71.93, 157.53)   87.35                67