Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 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)
 12/28/2017   09:08:01   ( -80.70, 175.41) 12/28/2017   09:09:02  ( -80.69, 175.43)    1.39                61
 12/28/2017   09:59:01   (  80.70, -17.41) 12/28/2017   09:59:47  (  80.69, -17.32)    1.81                46
 12/28/2017   10:50:02   ( -80.71, 150.03) 12/28/2017   10:50:32  ( -80.69, 150.01)    1.52                30
 12/28/2017   11:41:02   (  80.70, -42.79) 12/28/2017   11:41:17  (  80.70, -42.74)    1.25                15
 12/28/2017   12:32:03   ( -80.71, 124.65) 12/28/2017   12:32:02  ( -80.70, 124.59)    2.02                 1
 12/28/2017   13:23:03   (  80.71, -68.18) 12/28/2017   13:22:47  (  80.70, -68.16)    0.96                16
 12/28/2017   14:14:05   ( -80.70,  98.92) 12/28/2017   14:13:33  ( -80.72,  98.83)    2.55                32
 12/28/2017   15:05:04   (  80.71, -93.56) 12/28/2017   15:04:17  (  80.70, -93.58)    1.16                47
 12/28/2017   15:56:06   ( -80.71,  73.55) 12/28/2017   15:55:03  ( -80.72,  73.41)    3.05                63