Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 7 15.  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)
 07/21/2023   08:07:29   (  74.53,  45.61) 07/21/2023   08:06:20  (  74.54,  43.55)   61.01                69
 07/21/2023   08:58:21   ( -74.90,-148.09) 07/21/2023   08:57:09  ( -74.90,-148.13)    1.06                72
 07/21/2023   09:49:07   (  74.92,  19.15) 07/21/2023   09:48:11  (  74.92,  19.15)    0.80                56
 07/21/2023   10:39:51   ( -74.91,-173.49) 07/21/2023   10:39:08  ( -74.90,-173.63)    3.99                43
 07/21/2023   11:30:37   (  74.93,  -6.24) 07/21/2023   11:30:10  (  74.92,  -6.35)    3.49                27
 07/21/2023   12:21:22   ( -74.96, 160.98) 07/21/2023   12:21:06  ( -74.95, 161.02)    2.19                16
 07/21/2023   13:12:07   (  74.94, -31.64) 07/21/2023   13:12:08  (  74.96, -31.70)    2.94                 1
 07/21/2023   14:02:52   ( -74.97, 135.58) 07/21/2023   14:03:05  ( -74.95, 135.52)    3.29                13
 07/21/2023   14:53:38   (  75.00, -57.17) 07/21/2023   14:54:06  (  75.01, -57.06)    3.48                28
 07/21/2023   15:44:22   ( -74.98, 110.19) 07/21/2023   15:45:03  ( -74.99, 110.17)    1.48                41
 07/21/2023   16:35:08   (  75.00, -82.57) 07/21/2023   16:36:05  (  75.00, -82.56)    0.39                57
 07/21/2023   17:25:52   ( -74.99,  84.79) 07/21/2023   17:27:02  ( -74.99,  84.67)    3.41                70
 07/21/2023   18:16:48   (  75.49,-109.38) 07/21/2023   18:17:55  (  75.42,-106.74)   74.10                67