Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 7 19.  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   08:07:28   (  74.51,  45.65) 07/21/2023   08:06:19  (  74.56,  43.60)   61.01                69
 07/21/2023   08:58:20   ( -74.89,-148.06) 07/21/2023   08:57:08  ( -74.92,-148.09)    3.08                72
 07/21/2023   09:49:06   (  74.91,  19.20) 07/21/2023   09:48:10  (  74.94,  19.21)    3.10                56
 07/21/2023   10:39:51   ( -74.95,-173.59) 07/21/2023   10:39:07  ( -74.92,-173.58)    3.28                44
 07/21/2023   11:30:36   (  74.92,  -6.20) 07/21/2023   11:30:09  (  74.93,  -6.29)    3.43                27
 07/21/2023   12:21:21   ( -74.95, 161.01) 07/21/2023   12:21:05  ( -74.96, 161.06)    1.75                16
 07/21/2023   13:12:07   (  74.97, -31.73) 07/21/2023   13:12:07  (  74.98, -31.65)    2.50                 0
 07/21/2023   14:02:51   ( -74.96, 135.61) 07/21/2023   14:03:04  ( -74.96, 135.57)    1.39                13
 07/21/2023   14:53:37   (  74.98, -57.13) 07/21/2023   14:54:06  (  74.98, -57.15)    0.59                29
 07/21/2023   15:44:22   ( -75.02, 110.08) 07/21/2023   15:45:02  ( -75.01, 110.21)    3.88                40
 07/21/2023   16:35:07   (  74.99, -82.52) 07/21/2023   16:36:05  (  74.98, -82.64)    3.68                58
 07/21/2023   17:25:52   ( -75.02,  84.68) 07/21/2023   17:27:01  ( -75.01,  84.72)    2.23                69
 07/21/2023   18:16:47   (  75.47,-109.33) 07/21/2023   18:17:54  (  75.44,-106.68)   74.04                67