Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2021 3 4.  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,-111.56) 03/13/2021   17:28:10  (  78.28,-108.32)   73.26                66
 03/13/2021   18:18:02   ( -78.52,  57.40) 03/13/2021   18:19:01  ( -78.54,  57.52)    3.20                59
 03/13/2021   19:08:57   (  78.52,-135.32) 03/13/2021   19:09:47  (  78.56,-135.30)    4.08                50
 03/13/2021   20:00:02   ( -78.54,  32.00) 03/13/2021   20:00:31  ( -78.54,  32.12)    2.65                29
 03/13/2021   20:50:57   (  78.54,-160.72) 03/13/2021   20:51:17  (  78.57,-160.70)    2.98                20
 03/13/2021   21:42:02   ( -78.55,   6.60) 03/13/2021   21:42:01  ( -78.55,   6.72)    2.54                 1
 03/13/2021   22:32:57   (  78.55, 173.88) 03/13/2021   22:32:47  (  78.57, 173.90)    1.88                10
 03/13/2021   23:24:02   ( -78.57, -18.79) 03/13/2021   23:23:31  ( -78.55, -18.69)    2.91                31
 03/14/2021   00:14:57   (  78.57, 148.48) 03/14/2021   00:14:17  (  78.57, 148.49)    0.81                40
 03/14/2021   01:06:02   ( -78.58, -44.19) 03/14/2021   01:05:02  ( -78.60, -44.32)    3.12                60
 03/14/2021   01:56:57   (  78.58, 123.08) 03/14/2021   01:55:47  (  78.58, 123.09)    0.45                70