Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and NOAA-19
TLE Epoch: 2018 1 12.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2018   21:24:32   (  80.68, 171.85) 01/17/2018   21:23:17  (  80.69, 171.95)    1.95                75
 01/17/2018   22:15:17   ( -80.68, -20.86) 01/17/2018   22:14:23  ( -80.69, -20.89)    0.63                54
 01/17/2018   23:06:02   (  80.68, 146.44) 01/17/2018   23:05:18  (  80.69, 146.56)    2.36                44
 01/17/2018   23:56:47   ( -80.69, -46.27) 01/17/2018   23:56:24  ( -80.69, -46.28)    0.52                23
 01/18/2018   00:47:32   (  80.69, 121.03) 01/18/2018   00:47:19  (  80.70, 121.17)    2.78                13
 01/18/2018   01:38:17   ( -80.69, -71.67) 01/18/2018   01:38:25  ( -80.69, -71.66)    0.75                 8
 01/18/2018   02:29:02   (  80.69,  95.62) 01/18/2018   02:29:20  (  80.70,  95.78)    3.19                18
 01/18/2018   03:19:47   ( -80.69, -97.08) 01/18/2018   03:20:26  ( -80.70, -97.05)    1.13                39
 01/18/2018   04:10:32   (  80.69,  70.21) 01/18/2018   04:11:22  (  80.69,  70.04)    3.18                50