Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 8 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)
 08/19/2023   22:35:52   (  74.31,-170.98) 08/19/2023   22:34:44  (  74.32,-173.26)   68.65                68
 08/19/2023   23:26:45   ( -74.74,  -4.80) 08/19/2023   23:25:39  ( -74.75,  -4.83)    1.04                66
 08/20/2023   00:17:31   (  74.76, 162.46) 08/20/2023   00:16:34  (  74.75, 162.44)    1.48                57
 08/20/2023   01:08:15   ( -74.75, -30.20) 08/20/2023   01:07:38  ( -74.74, -30.34)    4.04                37
 08/20/2023   01:59:01   (  74.77, 137.06) 08/20/2023   01:58:32  (  74.79, 137.07)    2.27                29
 08/20/2023   02:49:46   ( -74.81, -55.74) 08/20/2023   02:49:36  ( -74.78, -55.70)    2.83                10
 08/20/2023   03:40:31   (  74.78, 111.66) 08/20/2023   03:40:31  (  74.78, 111.57)    2.75                 0
 08/20/2023   04:31:16   ( -74.82, -81.14) 08/20/2023   04:31:34  ( -74.83, -81.07)    2.16                18
 08/20/2023   05:22:02   (  74.84,  86.12) 08/20/2023   05:22:29  (  74.83,  86.20)    2.46                27
 08/20/2023   06:12:46   ( -74.83,-106.54) 08/20/2023   06:13:33  ( -74.82,-106.58)    1.22                47
 08/20/2023   07:03:32   (  74.85,  60.72) 08/20/2023   07:04:28  (  74.82,  60.69)    2.94                56
 08/20/2023   07:54:17   ( -74.89,-132.07) 08/20/2023   07:55:31  ( -74.87,-131.94)    4.42                74
 08/20/2023   08:45:10   (  75.24,  34.22) 08/20/2023   08:46:19  (  75.19,  36.32)   59.93                69