Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 6 10.  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)
 06/20/2021   19:53:07   (  78.20,-144.55) 06/20/2021   19:54:21  (  78.22,-144.52)    1.72                74
 06/20/2021   20:44:05   ( -78.23,  22.83) 06/20/2021   20:45:06  ( -78.23,  22.73)    2.30                61
 06/20/2021   21:35:07   (  78.22,-169.98) 06/20/2021   21:35:51  (  78.22,-169.90)    1.75                44
 06/20/2021   22:26:05   ( -78.24,  -2.59) 06/20/2021   22:26:36  ( -78.23,  -2.65)    1.57                31
 06/20/2021   23:17:07   (  78.23, 164.59) 06/20/2021   23:17:21  (  78.22, 164.71)    2.63                14
 06/21/2021   00:08:05   ( -78.25, -28.01) 06/21/2021   00:08:06  ( -78.23, -28.04)    1.85                 1
 06/21/2021   00:59:07   (  78.24, 139.17) 06/21/2021   00:58:52  (  78.27, 139.10)    3.18                15
 06/21/2021   01:50:05   ( -78.26, -53.43) 06/21/2021   01:49:36  ( -78.24, -53.43)    2.85                29
 06/21/2021   02:41:07   (  78.25, 113.74) 06/21/2021   02:40:22  (  78.27, 113.71)    1.87                45
 06/21/2021   03:32:05   ( -78.27, -78.86) 06/21/2021   03:31:07  ( -78.28, -79.03)    3.96                58
 06/21/2021   04:23:07   (  78.26,  88.32) 06/21/2021   04:21:52  (  78.27,  88.33)    0.78                75