Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 5 28.  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)
 05/29/2017   10:39:11   ( -68.85,-161.80) 05/29/2017   10:40:21  ( -68.73,-160.85)   40.32                70
 05/29/2017   11:29:47   (  68.28,   6.26) 05/29/2017   11:29:54  (  68.29,   6.25)    0.94                 7
 05/29/2017   12:20:28   ( -68.16, 173.73) 05/29/2017   12:19:24  ( -68.18, 173.76)    3.06                64
 06/01/2017   02:55:58   ( -68.41, -45.45) 06/01/2017   02:56:58  ( -68.40, -45.39)    2.82                60
 06/01/2017   03:46:41   (  68.22, 122.11) 06/01/2017   03:46:26  (  68.23, 122.05)    2.54                15
 06/01/2017   04:37:14   ( -67.66, -69.88) 06/01/2017   04:36:03  ( -67.74, -70.89)   43.25                71
 06/03/2017   19:12:51   ( -68.35,  70.40) 06/03/2017   19:13:30  ( -68.33,  70.40)    1.97                39
 06/03/2017   20:03:35   (  68.21,-122.11) 06/03/2017   20:02:57  (  68.22,-122.09)    0.88                38
 06/06/2017   10:39:15   (  69.01,  17.97) 06/06/2017   10:40:24  (  68.92,  19.35)   55.99                69
 06/06/2017   11:29:45   ( -68.29,-173.75) 06/06/2017   11:30:03  ( -68.32,-173.75)    3.04                18
 06/06/2017   12:20:29   (  68.16,  -6.27) 06/06/2017   12:19:31  (  68.15,  -6.31)    2.27                58
 06/09/2017   02:55:58   (  68.37, 134.61) 06/09/2017   02:57:07  (  68.39, 134.57)    3.28                69
 06/09/2017   03:46:40   ( -68.29, -57.97) 06/09/2017   03:46:37  ( -68.30, -57.91)    2.81                 3
 06/09/2017   04:37:20   (  67.94, 109.77) 06/09/2017   04:36:07  (  68.01, 109.39)   17.75                73
 06/11/2017   19:12:53   (  68.37,-109.62) 06/11/2017   19:13:42  (  68.37,-109.61)    0.77                49
 06/11/2017   20:03:34   ( -68.24,  57.87) 06/11/2017   20:03:13  ( -68.22,  57.85)    1.81                21
 06/11/2017   20:54:02   (  67.24,-133.61) 06/11/2017   20:52:54  (  67.32,-135.54)   83.62                68