Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 8 11.  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)
 08/12/2018   11:30:05   ( -68.42,-173.92) 08/12/2018   11:31:14  ( -68.39,-173.93)    3.35                69
 08/12/2018   12:20:49   (  68.30,  -6.45) 08/12/2018   12:20:41  (  68.28,  -6.41)    2.13                 8
 08/12/2018   13:11:27   ( -67.99, 161.25) 08/12/2018   13:10:14  ( -68.00, 160.89)   15.22                73
 08/15/2018   03:47:01   ( -68.36, -58.08) 08/15/2018   03:47:43  ( -68.36, -58.09)    0.48                42
 08/15/2018   04:37:45   (  68.24, 109.38) 08/15/2018   04:37:10  (  68.25, 109.43)    2.14                35
 08/17/2018   19:13:24   (  68.94,-110.40) 08/17/2018   19:14:34  (  68.83,-109.26)   47.45                70
 08/17/2018   20:03:56   ( -68.31,  57.76) 08/17/2018   20:04:11  ( -68.33,  57.76)    2.67                15
 08/17/2018   20:54:40   (  68.19,-134.79) 08/17/2018   20:53:39  (  68.16,-134.79)    3.15                61
 08/20/2018   11:30:11   (  68.41,   6.07) 08/20/2018   11:31:10  (  68.41,   6.11)    1.31                59
 08/20/2018   12:20:52   ( -68.25, 173.59) 08/20/2018   12:20:41  ( -68.25, 173.54)    2.08                11
 08/20/2018   13:11:26   (  67.60, -18.29) 08/20/2018   13:10:16  (  67.69, -19.46)   50.67                70
 08/23/2018   03:47:07   (  68.36, 121.90) 08/23/2018   03:47:39  (  68.39, 121.96)    3.43                32
 08/23/2018   04:37:48   ( -68.20, -70.57) 08/23/2018   04:37:10  ( -68.23, -70.60)    2.88                38