Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and NOAA-19
TLE Epoch: 2021 9 11.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2021   03:56:47   ( -77.90, -83.49) 09/21/2021   03:55:34  ( -77.89, -83.38)    2.63                73
 09/21/2021   04:47:32   (  77.89,  83.90) 09/21/2021   04:46:38  (  77.88,  83.80)    2.28                54
 09/21/2021   05:38:17   ( -77.91,-108.89) 09/21/2021   05:37:34  ( -77.90,-108.83)    1.43                43
 09/21/2021   06:29:02   (  77.89,  58.50) 09/21/2021   06:28:38  (  77.89,  58.36)    3.35                24
 09/21/2021   07:19:47   ( -77.91,-134.28) 09/21/2021   07:19:34  ( -77.91,-134.27)    0.34                13
 09/21/2021   08:10:33   (  77.94,  32.89) 09/21/2021   08:10:38  (  77.90,  32.91)    3.80                 5
 09/21/2021   09:01:17   ( -77.92,-159.68) 09/21/2021   09:01:34  ( -77.92,-159.72)    1.07                17
 09/21/2021   09:52:03   (  77.94,   7.49) 09/21/2021   09:52:38  (  77.91,   7.47)    3.34                35
 09/21/2021   10:42:47   ( -77.92, 174.92) 09/21/2021   10:43:34  ( -77.93, 174.83)    2.25                47
 09/21/2021   11:33:33   (  77.95, -17.91) 09/21/2021   11:34:38  (  77.92, -17.98)    3.26                65
 09/21/2021   12:24:19   ( -78.01, 149.10) 09/21/2021   12:25:33  ( -77.98, 149.60)   12.02                74