Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2020 12 13.  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   00:06:49   (  78.76, 148.45) 12/19/2020   00:08:03  (  78.81, 148.71)    8.29                74
 12/19/2020   00:57:48   ( -78.82, -43.79) 12/19/2020   00:58:47  ( -78.79, -43.85)    3.81                59
 12/19/2020   01:48:48   (  78.80, 123.32) 12/19/2020   01:49:33  (  78.81, 123.31)    1.05                45
 12/19/2020   02:39:49   ( -78.81, -69.43) 12/19/2020   02:40:18  ( -78.83, -69.48)    3.15                29
 12/19/2020   03:30:47   (  78.82,  97.94) 12/19/2020   03:31:02  (  78.82,  97.92)    0.59                15
 12/19/2020   04:21:48   ( -78.82, -94.81) 12/19/2020   04:21:47  ( -78.83, -94.88)    2.08                 1
 12/19/2020   05:12:47   (  78.84,  72.56) 12/19/2020   05:12:32  (  78.82,  72.53)    1.93                15
 12/19/2020   06:03:48   ( -78.84,-120.20) 12/19/2020   06:03:17  ( -78.84,-120.27)    1.59                31
 12/19/2020   06:54:47   (  78.85,  47.18) 12/19/2020   06:54:02  (  78.82,  47.13)    3.35                45
 12/19/2020   07:45:48   ( -78.85,-145.58) 12/19/2020   07:44:47  ( -78.84,-145.66)    2.11                61
 12/19/2020   08:36:48   (  78.83,  21.55) 12/19/2020   08:35:33  (  78.86,  21.50)    3.39                75