Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2020 12 18.  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)
 12/19/2020   00:06:48   (  78.78, 148.61) 12/19/2020   00:08:02  (  78.79, 148.84)    5.22                74
 12/19/2020   00:57:48   ( -78.81, -43.91) 12/19/2020   00:58:47  ( -78.81, -43.98)    1.64                59
 12/19/2020   01:48:47   (  78.83, 123.48) 12/19/2020   01:49:32  (  78.79, 123.45)    3.72                45
 12/19/2020   02:39:48   ( -78.82, -69.29) 12/19/2020   02:40:17  ( -78.81, -69.38)    2.07                29
 12/19/2020   03:30:48   (  78.81,  97.85) 12/19/2020   03:31:03  (  78.83,  97.81)    2.88                15
 12/19/2020   04:21:48   ( -78.84, -94.68) 12/19/2020   04:21:47  ( -78.82, -94.77)    3.11                 1
 12/19/2020   05:12:48   (  78.82,  72.46) 12/19/2020   05:12:33  (  78.84,  72.42)    1.72                15
 12/19/2020   06:03:49   ( -78.82,-120.32) 12/19/2020   06:03:17  ( -78.82,-120.16)    3.26                32
 12/19/2020   06:54:48   (  78.84,  47.08) 12/19/2020   06:54:03  (  78.84,  47.02)    1.34                45
 12/19/2020   07:45:49   ( -78.84,-145.70) 12/19/2020   07:44:47  ( -78.82,-145.56)    3.37                62
 12/19/2020   08:36:48   (  78.86,  21.70) 12/19/2020   08:35:33  (  78.84,  21.63)    2.20                75