Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 5 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)
 05/14/2025   13:31:24   ( -70.91, 152.23) 05/14/2025   13:30:12  ( -70.89, 151.06)   42.57                72
 05/14/2025   14:22:15   (  71.16, -40.88) 05/14/2025   14:21:01  (  71.17, -41.18)   10.62                74
 05/14/2025   15:13:01   ( -71.28, 126.23) 05/14/2025   15:12:01  ( -71.28, 126.26)    1.02                60
 05/14/2025   16:03:47   (  71.27, -66.44) 05/14/2025   16:02:55  (  71.30, -66.43)    3.39                52
 05/14/2025   16:54:31   ( -71.28, 100.86) 05/14/2025   16:53:57  ( -71.30, 100.82)    2.73                34
 05/14/2025   17:45:18   (  71.32, -91.90) 05/14/2025   17:44:51  (  71.32, -91.86)    1.50                27
 05/14/2025   18:36:02   ( -71.33,  75.39) 05/14/2025   18:35:53  ( -71.33,  75.39)    0.44                 9
 05/14/2025   19:26:48   (  71.32,-117.28) 05/14/2025   19:26:47  (  71.35,-117.30)    3.21                 1
 05/14/2025   20:17:32   ( -71.33,  50.01) 05/14/2025   20:17:49  ( -71.36,  49.95)    3.18                17
 05/14/2025   21:08:19   (  71.37,-142.75) 05/14/2025   21:08:43  (  71.38,-142.74)    0.48                24
 05/14/2025   21:59:03   ( -71.39,  24.55) 05/14/2025   21:59:45  ( -71.38,  24.52)    1.05                42
 05/14/2025   22:49:50   (  71.43,-168.22) 05/14/2025   22:50:39  (  71.40,-168.17)    3.29                49
 05/14/2025   23:40:34   ( -71.44,  -0.92) 05/14/2025   23:41:41  ( -71.41,  -0.92)    3.43                67
 05/15/2025   00:31:21   (  71.48, 166.31) 05/15/2025   00:32:34  (  71.48, 166.49)    6.11                73
 05/15/2025   01:22:17   ( -72.11, -27.53) 05/15/2025   01:23:25  ( -72.04, -25.19)   80.46                68