Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 4 11.  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)
 04/12/2025   05:03:45   ( -70.73, -80.54) 04/12/2025   05:02:38  ( -70.71, -82.99)   90.00                67
 04/12/2025   05:54:42   (  71.33,  85.76) 04/12/2025   05:53:28  (  71.32,  85.32)   15.57                74
 04/12/2025   06:45:29   ( -71.47,-107.17) 04/12/2025   06:44:20  ( -71.46,-107.15)    1.40                69
 04/12/2025   07:36:15   (  71.49,  60.09) 04/12/2025   07:35:21  (  71.50,  60.18)    3.22                54
 04/12/2025   08:26:59   ( -71.48,-132.56) 04/12/2025   08:26:16  ( -71.49,-132.57)    1.23                43
 04/12/2025   09:17:45   (  71.51,  34.70) 04/12/2025   09:17:18  (  71.48,  34.66)    3.04                27
 04/12/2025   10:08:30   ( -71.54,-158.05) 04/12/2025   10:08:12  ( -71.52,-158.00)    2.89                18
 04/12/2025   10:59:15   (  71.52,   9.30) 04/12/2025   10:59:14  (  71.51,   9.23)    2.55                 1
 04/12/2025   11:50:00   ( -71.55, 176.56) 04/12/2025   11:50:08  ( -71.55, 176.58)    0.70                 8
 04/12/2025   12:40:46   (  71.58, -16.18) 04/12/2025   12:41:09  (  71.59, -16.10)    3.45                23
 04/12/2025   13:31:30   ( -71.56, 151.16) 04/12/2025   13:32:04  ( -71.58, 151.15)    2.39                34
 04/12/2025   14:22:16   (  71.59, -41.58) 04/12/2025   14:23:06  (  71.57, -41.62)    2.28                50
 04/12/2025   15:13:01   ( -71.62, 125.68) 04/12/2025   15:14:00  ( -71.61, 125.73)    2.05                59
 04/12/2025   16:03:48   (  71.70, -67.16) 04/12/2025   16:05:01  (  71.66, -66.95)    9.06                73
 04/12/2025   16:54:39   ( -72.05,  99.52) 04/12/2025   16:55:49  ( -72.00, 100.98)   50.50                70