Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 7 31.  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)
 08/01/2017   10:39:22   ( -69.23,-162.30) 08/01/2017   10:40:30  ( -69.14,-160.42)   74.97                68
 08/01/2017   11:29:51   (  68.31,   6.25) 08/01/2017   11:30:10  (  68.31,   6.18)    2.77                19
 08/01/2017   12:20:33   ( -68.22, 173.68) 08/01/2017   12:19:40  ( -68.21, 173.70)    1.75                53
 08/04/2017   02:56:05   ( -68.45, -45.48) 08/04/2017   02:57:13  ( -68.43, -45.44)    2.61                68
 08/04/2017   03:46:48   (  68.28, 122.05) 08/04/2017   03:46:41  (  68.26, 122.00)    3.35                 7
 08/04/2017   04:37:26   ( -67.97, -70.24) 08/04/2017   04:36:13  ( -68.05, -70.62)   18.12                73
 08/06/2017   19:13:00   ( -68.36,  70.40) 08/06/2017   19:13:43  ( -68.38,  70.37)    2.20                43
 08/06/2017   20:03:44   (  68.25,-122.14) 08/06/2017   20:03:10  (  68.26,-122.13)    1.35                34
 08/09/2017   10:39:26   (  69.02,  17.97) 08/09/2017   10:40:35  (  68.92,  19.28)   53.73                69
 08/09/2017   11:29:57   ( -68.33,-173.79) 08/09/2017   11:30:14  ( -68.32,-173.83)    1.91                17
 08/09/2017   12:20:41   (  68.22,  -6.34) 08/09/2017   12:19:41  (  68.20,  -6.32)    2.44                60
 08/12/2017   02:56:12   (  68.41, 134.56) 08/12/2017   02:57:14  (  68.41, 134.52)    1.49                62
 08/12/2017   03:46:54   ( -68.30, -57.99) 08/12/2017   03:46:44  ( -68.31, -57.97)    1.43                10
 08/12/2017   04:37:29   (  67.71, 110.06) 08/12/2017   04:36:18  (  67.80, 109.08)   42.59                71
 08/14/2017   19:13:09   (  68.38,-109.65) 08/14/2017   19:13:44  (  68.39,-109.63)    1.52                35