Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 6 9.  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   ( -70.79, -25.30) 06/16/2025   01:21:05  ( -70.78, -26.20)   32.93                73
 06/16/2025   02:13:08   (  70.96, 141.72) 06/16/2025   02:11:54  (  70.94, 141.37)   12.59                74
 06/16/2025   03:03:53   ( -71.05, -51.12) 06/16/2025   03:02:56  ( -71.06, -51.20)    3.00                57
 06/16/2025   03:54:40   (  71.07, 116.16) 06/16/2025   03:53:48  (  71.07, 116.11)    1.92                52
 06/16/2025   04:45:24   ( -71.10, -76.58) 06/16/2025   04:44:51  ( -71.13, -76.55)    3.03                33
 06/16/2025   05:36:11   (  71.12,  90.69) 06/16/2025   05:35:44  (  71.09,  90.67)    3.10                27
 06/16/2025   06:26:55   ( -71.16,-102.05) 06/16/2025   06:26:47  ( -71.15,-101.99)    2.27                 8
 06/16/2025   07:17:41   (  71.12,  65.31) 06/16/2025   07:17:40  (  71.12,  65.23)    3.24                 1
 06/16/2025   08:08:25   ( -71.16,-127.43) 06/16/2025   08:08:43  ( -71.17,-127.44)    1.42                18
 06/16/2025   08:59:12   (  71.18,  39.85) 06/16/2025   08:59:35  (  71.19,  39.88)    1.81                23
 06/16/2025   09:49:56   ( -71.22,-152.90) 06/16/2025   09:50:39  ( -71.20,-152.88)    2.28                43
 06/16/2025   10:40:43   (  71.23,  14.38) 06/16/2025   10:41:31  (  71.21,  14.43)    2.95                48
 06/16/2025   11:31:26   ( -71.22,-178.28) 06/16/2025   11:32:35  ( -71.22,-178.32)    1.52                69
 06/16/2025   12:22:13   (  71.24, -11.00) 06/16/2025   12:23:27  (  71.24, -11.01)    0.21                74
 06/16/2025   13:13:11   ( -72.00, 154.94) 06/16/2025   13:14:18  ( -71.90, 157.47)   87.82                67