Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 6 13.  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   01:22:18   ( -70.78, -25.28) 06/16/2025   01:21:05  ( -70.79, -26.18)   32.87                73
 06/16/2025   02:13:08   (  70.94, 141.74) 06/16/2025   02:11:54  (  70.96, 141.40)   12.58                74
 06/16/2025   03:03:54   ( -71.09, -51.18) 06/16/2025   03:02:56  ( -71.07, -51.18)    2.65                58
 06/16/2025   03:54:40   (  71.10, 116.10) 06/16/2025   03:53:47  (  71.09, 116.14)    2.44                53
 06/16/2025   04:45:23   ( -71.09, -76.56) 06/16/2025   04:44:51  ( -71.09, -76.62)    2.05                32
 06/16/2025   05:36:10   (  71.11,  90.72) 06/16/2025   05:35:43  (  71.11,  90.70)    0.89                27
 06/16/2025   06:26:54   ( -71.15,-102.03) 06/16/2025   06:26:46  ( -71.16,-101.97)    2.76                 8
 06/16/2025   07:17:41   (  71.16,  65.25) 06/16/2025   07:17:39  (  71.13,  65.25)    3.30                 2
 06/16/2025   08:08:25   ( -71.20,-127.50) 06/16/2025   08:08:42  ( -71.19,-127.42)    3.61                17
 06/16/2025   08:59:11   (  71.16,  39.87) 06/16/2025   08:59:35  (  71.15,  39.81)    2.41                24
 06/16/2025   09:49:55   ( -71.21,-152.88) 06/16/2025   09:50:38  ( -71.21,-152.86)    0.88                43
 06/16/2025   10:40:42   (  71.22,  14.40) 06/16/2025   10:41:30  (  71.23,  14.46)    2.38                48
 06/16/2025   11:31:25   ( -71.21,-178.26) 06/16/2025   11:32:34  ( -71.23,-178.30)    2.91                69
 06/16/2025   12:22:13   (  71.27, -11.07) 06/16/2025   12:23:26  (  71.25, -10.98)    3.96                73
 06/16/2025   13:13:10   ( -71.98, 154.96) 06/16/2025   13:14:17  ( -71.92, 157.50)   87.62                67