Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and NOAA-19
TLE Epoch: 2021 9 9.  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   ( -77.91, -83.51) 09/21/2021   03:55:34  ( -77.88, -83.48)    3.34                73
 09/21/2021   04:47:32   (  77.89,  83.87) 09/21/2021   04:46:37  (  77.90,  83.91)    1.57                55
 09/21/2021   05:38:17   ( -77.91,-108.91) 09/21/2021   05:37:34  ( -77.89,-108.92)    2.80                43
 09/21/2021   06:29:02   (  77.90,  58.47) 09/21/2021   06:28:37  (  77.91,  58.47)    1.67                25
 09/21/2021   07:19:47   ( -77.92,-134.31) 09/21/2021   07:19:34  ( -77.89,-134.37)    2.76                13
 09/21/2021   08:10:32   (  77.90,  33.07) 09/21/2021   08:10:37  (  77.92,  33.02)    2.43                 5
 09/21/2021   09:01:17   ( -77.92,-159.71) 09/21/2021   09:01:34  ( -77.90,-159.82)    3.22                17
 09/21/2021   09:52:03   (  77.95,   7.46) 09/21/2021   09:52:37  (  77.93,   7.57)    3.24                34
 09/21/2021   10:42:47   ( -77.92, 174.89) 09/21/2021   10:43:33  ( -77.95, 174.95)    3.08                46
 09/21/2021   11:33:33   (  77.95, -17.94) 09/21/2021   11:34:37  (  77.94, -17.87)    2.10                64
 09/21/2021   12:24:19   ( -78.01, 149.08) 09/21/2021   12:25:33  ( -77.96, 149.50)   11.34                74