Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 1 10.  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)
 01/11/2018   01:18:16   ( -80.69, -67.03) 01/11/2018   01:19:28  ( -80.68, -67.07)    1.10                72
 01/11/2018   02:09:13   (  80.68, 100.13) 01/11/2018   02:10:13  (  80.68, 100.29)    3.09                60
 01/11/2018   03:00:17   ( -80.69, -92.41) 01/11/2018   03:00:58  ( -80.68, -92.49)    1.75                41
 01/11/2018   03:51:14   (  80.69,  74.74) 01/11/2018   03:51:43  (  80.68,  74.87)    2.50                29
 01/11/2018   04:42:18   ( -80.70,-117.79) 01/11/2018   04:42:28  ( -80.69,-117.91)    2.46                10
 01/11/2018   05:33:15   (  80.69,  49.35) 01/11/2018   05:33:13  (  80.68,  49.45)    1.96                 2
 01/11/2018   06:24:19   ( -80.70,-143.17) 01/11/2018   06:23:58  ( -80.69,-143.33)    3.19                21
 01/11/2018   07:15:16   (  80.70,  23.97) 01/11/2018   07:14:43  (  80.69,  24.03)    1.53                33
 01/11/2018   08:06:21   ( -80.69,-168.91) 01/11/2018   08:05:28  ( -80.69,-168.76)    2.75                53
 01/11/2018   08:57:17   (  80.70,  -1.42) 01/11/2018   08:56:13  (  80.69,  -1.40)    1.31                64
 01/24/2018   18:19:28   (  80.59,-144.23) 01/24/2018   18:20:36  (  80.62,-141.37)   52.03                68
 01/24/2018   19:10:29   ( -80.67,  24.94) 01/24/2018   19:11:24  ( -80.68,  24.87)    1.90                55
 01/24/2018   20:01:24   (  80.67,-167.86) 01/24/2018   20:02:09  (  80.68,-167.81)    1.84                45
 01/24/2018   20:52:30   ( -80.68,  -0.46) 01/24/2018   20:52:54  ( -80.69,  -0.56)    2.27                24