Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2015 8 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)
 09/01/2015   06:07:33   ( -81.04,-145.11) 09/01/2015   06:08:39  ( -81.05,-145.05)    1.19                66
 09/01/2015   06:58:30   (  81.04,  22.18) 09/01/2015   06:59:24  (  81.05,  22.26)    1.47                54
 09/01/2015   07:49:35   ( -81.04,-170.42) 09/01/2015   07:50:09  ( -81.05,-170.49)    1.31                34
 09/01/2015   08:40:32   (  81.04,  -3.13) 09/01/2015   08:40:54  (  81.05,  -3.18)    1.20                22
 09/01/2015   09:31:37   ( -81.04, 164.27) 09/01/2015   09:31:38  ( -81.04, 164.44)    3.04                 1
 09/01/2015   10:22:34   (  81.04, -28.44) 09/01/2015   10:22:23  (  81.04, -28.26)    3.15                11
 09/01/2015   11:13:39   ( -81.04, 138.96) 09/01/2015   11:13:08  ( -81.04, 139.00)    0.72                31
 09/01/2015   12:04:36   (  81.04, -53.74) 09/01/2015   12:03:53  (  81.04, -53.70)    0.76                43
 09/01/2015   12:55:41   ( -81.04, 113.64) 09/01/2015   12:54:38  ( -81.04, 113.56)    1.62                63