Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 9 13.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2021   02:46:16   (  77.89, 113.68) 09/14/2021   02:47:30  (  77.93, 113.78)    4.51                74
 09/14/2021   03:37:13   ( -77.92, -78.91) 09/14/2021   03:38:14  ( -77.91, -78.80)    2.91                61
 09/14/2021   04:28:15   (  77.94,  88.45) 09/14/2021   04:29:00  (  77.93,  88.39)    1.77                45
 09/14/2021   05:19:13   ( -77.93,-104.36) 09/14/2021   05:19:45  ( -77.95,-104.40)    2.67                32
 09/14/2021   06:10:15   (  77.95,  63.01) 09/14/2021   06:10:30  (  77.93,  63.01)    1.97                15
 09/14/2021   07:01:13   ( -77.94,-129.81) 09/14/2021   07:01:15  ( -77.96,-129.79)    1.88                 2
 09/14/2021   07:52:15   (  77.96,  37.56) 09/14/2021   07:52:00  (  77.94,  37.62)    2.97                15
 09/14/2021   08:43:13   ( -77.95,-155.25) 09/14/2021   08:42:45  ( -77.96,-155.18)    2.10                28
 09/14/2021   09:34:15   (  77.97,  12.12) 09/14/2021   09:33:31  (  77.98,  12.02)    2.62                44
 09/14/2021   10:25:13   ( -77.96, 179.30) 09/14/2021   10:24:15  ( -77.96, 179.43)    3.12                58
 09/14/2021   11:16:15   (  77.98, -13.32) 09/14/2021   11:15:01  (  77.98, -13.37)    1.21                74