Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 6 12.  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   01:22:17   ( -70.76, -25.26) 06/16/2025   01:21:05  ( -70.75, -26.25)   36.25                72
 06/16/2025   02:13:07   (  70.93, 141.76) 06/16/2025   02:11:54  (  70.92, 141.33)   15.89                73
 06/16/2025   03:03:53   ( -71.08, -51.16) 06/16/2025   03:02:55  ( -71.08, -51.16)    0.25                58
 06/16/2025   03:54:40   (  71.09, 116.12) 06/16/2025   03:53:47  (  71.09, 116.16)    1.38                53
 06/16/2025   04:45:23   ( -71.08, -76.54) 06/16/2025   04:44:51  ( -71.10, -76.60)    2.96                32
 06/16/2025   05:36:10   (  71.09,  90.74) 06/16/2025   05:35:43  (  71.12,  90.71)    2.71                27
 06/16/2025   06:26:54   ( -71.14,-102.01) 06/16/2025   06:26:47  ( -71.12,-102.04)    1.89                 7
 06/16/2025   07:17:41   (  71.15,  65.27) 06/16/2025   07:17:39  (  71.14,  65.27)    1.01                 2
 06/16/2025   08:08:25   ( -71.19,-127.48) 06/16/2025   08:08:42  ( -71.20,-127.40)    3.08                17
 06/16/2025   08:59:11   (  71.15,  39.89) 06/16/2025   08:59:35  (  71.16,  39.83)    2.55                24
 06/16/2025   09:49:55   ( -71.19,-152.86) 06/16/2025   09:50:38  ( -71.22,-152.84)    2.95                43
 06/16/2025   10:40:42   (  71.21,  14.42) 06/16/2025   10:41:31  (  71.19,  14.39)    2.65                49
 06/16/2025   11:31:26   ( -71.25,-178.33) 06/16/2025   11:32:34  ( -71.24,-178.28)    1.81                68
 06/16/2025   12:22:13   (  71.26, -11.05) 06/16/2025   12:23:26  (  71.26, -10.96)    3.03                73
 06/16/2025   13:13:10   ( -71.97, 154.99) 06/16/2025   13:14:17  ( -71.93, 157.52)   87.35                67