Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 8 29.  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)
 08/30/2021   21:54:29   ( -77.97,   6.51) 08/30/2021   21:55:36  ( -77.99,   6.43)    2.82                67
 08/30/2021   22:45:28   (  77.97, 173.75) 08/30/2021   22:46:21  (  77.97, 173.85)    2.31                53
 08/30/2021   23:36:29   ( -77.98, -18.94) 08/30/2021   23:37:06  ( -77.99, -18.96)    1.51                37
 08/31/2021   00:27:28   (  77.98, 148.31) 08/31/2021   00:27:51  (  77.97, 148.46)    3.61                23
 08/31/2021   01:18:29   ( -77.99, -44.38) 08/31/2021   01:18:36  ( -78.00, -44.35)    1.05                 7
 08/31/2021   02:09:28   (  77.99, 122.87) 08/31/2021   02:09:22  (  78.02, 122.86)    2.85                 6
 08/31/2021   03:00:29   ( -78.00, -69.83) 08/31/2021   03:00:06  ( -78.00, -69.74)    2.09                23
 08/31/2021   03:51:28   (  78.00,  97.43) 08/31/2021   03:50:52  (  78.02,  97.48)    2.29                36
 08/31/2021   04:42:29   ( -78.01, -95.27) 08/31/2021   04:41:36  ( -78.00, -95.12)    3.48                53
 08/31/2021   05:33:28   (  78.01,  71.99) 08/31/2021   05:32:22  (  78.02,  72.09)    2.54                66
 08/31/2021   06:24:21   ( -78.31,-118.91) 08/31/2021   06:23:15  ( -78.36,-122.45)   79.72                66