Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 8 28.  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,   6.47)    1.92                67
 08/30/2021   22:45:28   (  77.98, 173.79) 08/30/2021   22:46:21  (  77.96, 173.89)    2.71                53
 08/30/2021   23:36:29   ( -77.99, -18.90) 08/30/2021   23:37:06  ( -77.99, -18.92)    0.54                37
 08/31/2021   00:27:28   (  77.99, 148.35) 08/31/2021   00:27:52  (  78.01, 148.29)    2.62                24
 08/31/2021   01:18:29   ( -78.00, -44.34) 08/31/2021   01:18:36  ( -77.99, -44.31)    1.18                 7
 08/31/2021   02:09:28   (  78.00, 122.91) 08/31/2021   02:09:22  (  78.01, 122.90)    1.43                 6
 08/31/2021   03:00:29   ( -78.01, -69.79) 08/31/2021   03:00:06  ( -77.99, -69.70)    2.63                23
 08/31/2021   03:51:28   (  78.01,  97.47) 08/31/2021   03:50:52  (  78.01,  97.51)    1.18                36
 08/31/2021   04:42:29   ( -78.02, -95.23) 08/31/2021   04:41:37  ( -78.03, -95.30)    2.56                52
 08/31/2021   05:33:28   (  78.02,  72.03) 08/31/2021   05:32:22  (  78.01,  72.12)    2.21                66
 08/31/2021   06:24:21   ( -78.32,-118.87) 08/31/2021   06:23:15  ( -78.35,-122.41)   79.68                66