Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and NOAA-19
TLE Epoch: 2023 7 12.  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,  45.66) 07/21/2023   08:06:20  (  74.51,  43.47)   65.24                68
 07/21/2023   08:58:21   ( -74.92,-148.16) 07/21/2023   08:57:08  ( -74.92,-148.07)    2.68                73
 07/21/2023   09:49:06   (  74.90,  19.21) 07/21/2023   09:48:10  (  74.93,  19.20)    3.60                56
 07/21/2023   10:39:51   ( -74.93,-173.56) 07/21/2023   10:39:07  ( -74.92,-173.56)    1.07                44
 07/21/2023   11:30:37   (  74.96,  -6.32) 07/21/2023   11:30:09  (  74.93,  -6.29)    2.87                28
 07/21/2023   12:21:21   ( -74.94, 161.05) 07/21/2023   12:21:05  ( -74.97, 161.08)    3.33                16
 07/21/2023   13:12:07   (  74.97, -31.72) 07/21/2023   13:12:07  (  74.98, -31.65)    2.42                 0
 07/21/2023   14:02:51   ( -74.95, 135.65) 07/21/2023   14:03:04  ( -74.97, 135.58)    2.94                13
 07/21/2023   14:53:37   (  74.97, -57.11) 07/21/2023   14:54:06  (  74.98, -57.15)    1.04                29
 07/21/2023   15:44:22   ( -75.00, 110.12) 07/21/2023   15:45:02  ( -75.01, 110.23)    3.42                40
 07/21/2023   16:35:07   (  74.98, -82.51) 07/21/2023   16:36:05  (  74.98, -82.64)    3.92                58
 07/21/2023   17:25:52   ( -75.01,  84.72) 07/21/2023   17:27:01  ( -75.01,  84.73)    0.43                69
 07/21/2023   18:16:47   (  75.46,-109.31) 07/21/2023   18:17:54  (  75.44,-106.68)   73.61                67