Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 16.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/17/2017   10:39:31   ( -68.97,-161.98) 08/17/2017   10:40:41  ( -68.83,-160.84)   48.51                70
 08/17/2017   11:30:05   (  68.32,   6.19) 08/17/2017   11:30:15  (  68.33,   6.20)    1.16                10
 08/17/2017   12:20:47   ( -68.23, 173.63) 08/17/2017   12:19:45  ( -68.22, 173.70)    2.77                62
 08/20/2017   02:56:18   ( -68.41, -45.47) 08/20/2017   02:57:18  ( -68.42, -45.47)    0.49                60
 08/20/2017   03:47:02   (  68.30, 121.99) 08/20/2017   03:46:45  (  68.31, 122.04)    2.65                17
 08/20/2017   04:37:34   ( -67.67, -69.90) 08/20/2017   04:36:23  ( -67.76, -70.97)   46.24                71
 08/22/2017   19:13:14   ( -68.39,  70.32) 08/22/2017   19:13:47  ( -68.39,  70.37)    2.01                33
 08/22/2017   20:03:57   (  68.23,-122.16) 08/22/2017   20:03:15  (  68.22,-122.18)    1.31                42
 08/25/2017   10:39:33   (  68.69,  18.38) 08/25/2017   10:40:44  (  68.62,  18.90)   22.38                71
 08/25/2017   11:30:10   ( -68.32,-173.82) 08/25/2017   11:30:18  ( -68.29,-173.87)    3.36                 8
 08/25/2017   12:20:54   (  68.21,  -6.37) 08/25/2017   12:19:45  (  68.18,  -6.36)    3.13                69
 08/28/2017   02:56:25   (  68.40, 134.52) 08/28/2017   02:57:17  (  68.40, 134.51)    0.33                52
 08/28/2017   03:47:07   ( -68.30, -58.03) 08/28/2017   03:46:47  ( -68.30, -57.98)    1.95                20
 08/28/2017   04:37:36   (  67.38, 110.42) 08/28/2017   04:36:28  (  67.40, 108.63)   76.55                68