Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 3 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)
 03/13/2021   17:27:05   (  78.23,-111.74) 03/13/2021   17:28:10  (  78.27,-108.23)   79.54                65
 03/13/2021   18:18:02   ( -78.53,  57.43) 03/13/2021   18:19:01  ( -78.53,  57.58)    3.51                59
 03/13/2021   19:08:57   (  78.53,-135.27) 03/13/2021   19:09:47  (  78.54,-135.21)    1.94                50
 03/13/2021   20:00:02   ( -78.54,  32.03) 03/13/2021   20:00:32  ( -78.57,  31.95)    3.49                30
 03/13/2021   20:50:57   (  78.55,-160.67) 03/13/2021   20:51:17  (  78.55,-160.61)    1.41                20
 03/13/2021   21:42:02   ( -78.56,   6.63) 03/13/2021   21:42:02  ( -78.57,   6.55)    2.57                 0
 03/13/2021   22:32:57   (  78.56, 173.93) 03/13/2021   22:32:47  (  78.55, 173.99)    1.62                10
 03/13/2021   23:24:02   ( -78.57, -18.77) 03/13/2021   23:23:32  ( -78.58, -18.85)    1.93                30
 03/14/2021   00:14:57   (  78.58, 148.53) 03/14/2021   00:14:17  (  78.56, 148.59)    2.38                40
 03/14/2021   01:06:02   ( -78.59, -44.17) 03/14/2021   01:05:02  ( -78.58, -44.25)    1.86                60
 03/14/2021   01:56:57   (  78.59, 123.13) 03/14/2021   01:55:47  (  78.56, 123.19)    3.33                70