Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 3 21.  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)
 04/03/2018   11:39:40   (  80.61, -41.44) 04/03/2018   11:40:44  (  80.60, -41.35)    1.66                64
 04/03/2018   12:30:35   ( -80.62, 126.05) 04/03/2018   12:31:29  ( -80.60, 126.01)    1.80                54
 04/03/2018   13:21:41   (  80.61, -66.86) 04/03/2018   13:22:14  (  80.61, -66.75)    2.04                33
 04/03/2018   14:12:36   ( -80.62, 100.63) 04/03/2018   14:12:59  ( -80.60, 100.61)    1.88                23
 04/03/2018   15:03:42   (  80.61, -92.28) 04/03/2018   15:03:44  (  80.61, -92.15)    2.41                 2
 04/03/2018   15:54:37   ( -80.62,  75.21) 04/03/2018   15:54:29  ( -80.60,  75.21)    2.04                 8
 04/03/2018   16:45:43   (  80.62,-117.70) 04/03/2018   16:45:14  (  80.61,-117.55)    2.79                29
 04/03/2018   17:36:39   ( -80.61,  49.44) 04/03/2018   17:36:00  ( -80.63,  49.47)    1.92                39
 04/03/2018   18:27:43   (  80.62,-143.12) 04/03/2018   18:26:43  (  80.61,-142.95)    3.17                60