Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2025 4 18.  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   06:44:46   ( -70.78,-105.88) 04/28/2025   06:43:37  ( -70.75,-107.84)   71.89                69
 04/28/2025   07:35:40   (  71.22,  60.67) 04/28/2025   07:34:26  (  71.24,  60.26)   14.71                74
 04/28/2025   08:26:27   ( -71.36,-132.25) 04/28/2025   08:25:22  ( -71.34,-132.28)    2.31                65
 04/28/2025   09:17:13   (  71.39,  35.01) 04/28/2025   09:16:20  (  71.37,  35.02)    3.03                53
 04/28/2025   10:07:57   ( -71.37,-157.64) 04/28/2025   10:07:18  ( -71.37,-157.71)    2.42                39
 04/28/2025   10:58:43   (  71.41,   9.61) 04/28/2025   10:58:16  (  71.40,   9.59)    1.52                27
 04/28/2025   11:49:28   ( -71.44, 176.87) 04/28/2025   11:49:13  ( -71.45, 176.95)    3.29                15
 04/28/2025   12:40:13   (  71.42, -15.79) 04/28/2025   12:40:12  (  71.42, -15.85)    2.09                 1
 04/28/2025   13:30:58   ( -71.45, 151.47) 04/28/2025   13:31:10  ( -71.43, 151.43)    2.86                12
 04/28/2025   14:21:44   (  71.48, -41.28) 04/28/2025   14:22:08  (  71.45, -41.28)    3.66                24
 04/28/2025   15:12:28   ( -71.46, 126.07) 04/28/2025   15:13:06  ( -71.46, 126.00)    2.85                38
 04/28/2025   16:03:14   (  71.50, -66.67) 04/28/2025   16:04:04  (  71.48, -66.71)    2.34                50
 04/28/2025   16:53:59   ( -71.53, 100.59) 04/28/2025   16:55:01  ( -71.54, 100.66)    2.82                62
 04/28/2025   17:44:46   (  71.61, -92.26) 04/28/2025   17:45:59  (  71.56, -92.05)    9.60                73
 04/28/2025   18:35:39   ( -72.06,  74.24) 04/28/2025   18:36:48  ( -72.02,  76.10)   64.05                69