Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 8 22.  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   ( -77.98,   6.54) 08/30/2021   21:55:36  ( -77.98,   6.50)    0.83                67
 08/30/2021   22:45:28   (  77.97, 173.75) 08/30/2021   22:46:21  (  77.96, 173.89)    3.39                53
 08/30/2021   23:36:29   ( -77.99, -18.91) 08/30/2021   23:37:06  ( -77.98, -18.89)    0.87                37
 08/31/2021   00:27:28   (  77.98, 148.31) 08/31/2021   00:27:52  (  78.00, 148.30)    2.74                24
 08/31/2021   01:18:29   ( -78.00, -44.35) 08/31/2021   01:18:36  ( -77.98, -44.28)    2.32                 7
 08/31/2021   02:09:28   (  77.99, 122.87) 08/31/2021   02:09:22  (  78.01, 122.91)    2.06                 6
 08/31/2021   03:00:29   ( -78.00, -69.80) 08/31/2021   03:00:07  ( -78.03, -69.87)    2.84                22
 08/31/2021   03:51:28   (  78.00,  97.43) 08/31/2021   03:50:52  (  78.01,  97.52)    2.30                36
 08/31/2021   04:42:29   ( -78.01, -95.24) 08/31/2021   04:41:37  ( -78.03, -95.26)    1.56                52
 08/31/2021   05:33:28   (  78.01,  71.99) 08/31/2021   05:32:22  (  78.01,  72.13)    3.25                66
 08/31/2021   06:24:21   ( -78.32,-118.88) 08/31/2021   06:23:15  ( -78.35,-122.37)   78.58                66