Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 5 10.  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)
 05/14/2025   13:31:24   ( -70.92, 152.23) 05/14/2025   13:30:12  ( -70.88, 151.05)   42.93                72
 05/14/2025   14:22:15   (  71.17, -40.89) 05/14/2025   14:21:01  (  71.16, -41.19)   10.90                74
 05/14/2025   15:13:01   ( -71.28, 126.23) 05/14/2025   15:12:01  ( -71.27, 126.25)    1.35                60
 05/14/2025   16:03:47   (  71.27, -66.45) 05/14/2025   16:02:55  (  71.29, -66.44)    1.81                52
 05/14/2025   16:54:31   ( -71.28, 100.85) 05/14/2025   16:53:57  ( -71.30, 100.81)    2.20                34
 05/14/2025   17:45:18   (  71.32, -91.91) 05/14/2025   17:44:51  (  71.31, -91.88)    1.68                27
 05/14/2025   18:36:02   ( -71.33,  75.39) 05/14/2025   18:35:53  ( -71.32,  75.38)    1.33                 9
 05/14/2025   19:26:48   (  71.33,-117.29) 05/14/2025   19:26:47  (  71.34,-117.32)    1.82                 1
 05/14/2025   20:17:32   ( -71.34,  50.01) 05/14/2025   20:17:49  ( -71.35,  49.94)    2.87                17
 05/14/2025   21:08:19   (  71.38,-142.76) 05/14/2025   21:08:43  (  71.37,-142.75)    1.48                24
 05/14/2025   21:59:03   ( -71.39,  24.54) 05/14/2025   21:59:45  ( -71.38,  24.51)    1.88                42
 05/14/2025   22:49:49   (  71.38,-168.13) 05/14/2025   22:50:39  (  71.39,-168.19)    2.33                50
 05/14/2025   23:40:34   ( -71.44,  -0.93) 05/14/2025   23:41:40  ( -71.45,  -0.83)    3.50                66
 05/15/2025   00:31:21   (  71.49, 166.30) 05/15/2025   00:32:34  (  71.47, 166.47)    6.07                73
 05/15/2025   01:22:17   ( -72.11, -27.53) 05/15/2025   01:23:25  ( -72.04, -25.20)   80.20                68