Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 3 1.  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   17:27:04   (  78.26,-111.58) 03/13/2021   17:28:10  (  78.28,-108.32)   73.66                66
 03/13/2021   18:18:01   ( -78.56,  57.63) 03/13/2021   18:19:01  ( -78.54,  57.53)    3.08                60
 03/13/2021   19:08:56   (  78.56,-135.10) 03/13/2021   19:09:46  (  78.52,-135.07)    3.91                50
 03/13/2021   20:00:02   ( -78.54,  31.99) 03/13/2021   20:00:31  ( -78.54,  32.13)    3.07                29
 03/13/2021   20:50:57   (  78.54,-160.74) 03/13/2021   20:51:17  (  78.57,-160.70)    3.31                20
 03/13/2021   21:42:02   ( -78.55,   6.59) 03/13/2021   21:42:01  ( -78.55,   6.73)    2.99                 1
 03/13/2021   22:32:57   (  78.55, 173.86) 03/13/2021   22:32:47  (  78.57, 173.90)    2.24                10
 03/13/2021   23:24:02   ( -78.57, -18.80) 03/13/2021   23:23:31  ( -78.55, -18.67)    3.33                31
 03/14/2021   00:14:57   (  78.57, 148.46) 03/14/2021   00:14:17  (  78.57, 148.50)    1.24                40
 03/14/2021   01:06:02   ( -78.58, -44.20) 03/14/2021   01:05:02  ( -78.59, -44.30)    2.67                60
 03/14/2021   01:56:57   (  78.58, 123.06) 03/14/2021   01:55:47  (  78.58, 123.09)    0.71                70