Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 4 20.  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)
 04/28/2025   06:44:47   ( -70.78,-105.89) 04/28/2025   06:43:38  ( -70.74,-107.87)   72.44                69
 04/28/2025   07:35:41   (  71.23,  60.66) 04/28/2025   07:34:27  (  71.22,  60.24)   15.13                74
 04/28/2025   08:26:28   ( -71.37,-132.26) 04/28/2025   08:25:22  ( -71.38,-132.21)    2.11                66
 04/28/2025   09:17:13   (  71.35,  35.09) 04/28/2025   09:16:21  (  71.35,  35.00)    3.34                52
 04/28/2025   10:07:58   ( -71.38,-157.66) 04/28/2025   10:07:18  ( -71.41,-157.65)    3.11                40
 04/28/2025   10:58:44   (  71.41,   9.60) 04/28/2025   10:58:16  (  71.43,   9.66)    3.28                28
 04/28/2025   11:49:28   ( -71.45, 176.85) 04/28/2025   11:49:13  ( -71.44, 176.92)    2.64                15
 04/28/2025   12:40:13   (  71.42, -15.80) 04/28/2025   12:40:12  (  71.41, -15.87)    2.90                 1
 04/28/2025   13:30:58   ( -71.46, 151.46) 04/28/2025   13:31:09  ( -71.47, 151.49)    1.61                11
 04/28/2025   14:21:44   (  71.49, -41.29) 04/28/2025   14:22:07  (  71.49, -41.21)    2.86                23
 04/28/2025   15:12:28   ( -71.47, 126.06) 04/28/2025   15:13:05  ( -71.50, 126.06)    2.78                37
 04/28/2025   16:03:14   (  71.50, -66.68) 04/28/2025   16:04:03  (  71.52, -66.64)    2.53                49
 04/28/2025   16:53:59   ( -71.54, 100.57) 04/28/2025   16:55:01  ( -71.53, 100.63)    2.44                62
 04/28/2025   17:44:45   (  71.57, -92.17) 04/28/2025   17:45:59  (  71.55, -92.07)    4.22                74
 04/28/2025   18:35:39   ( -72.06,  74.22) 04/28/2025   18:36:48  ( -72.01,  76.08)   63.77                69