Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 6 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)
 06/30/2017   10:39:09   ( -68.94,-161.89) 06/30/2017   10:40:19  ( -68.82,-160.74)   48.02                70
 06/30/2017   11:29:44   (  68.32,   6.24) 06/30/2017   11:29:53  (  68.32,   6.29)    2.25                 9
 06/30/2017   12:20:24   ( -68.15, 173.78) 06/30/2017   12:19:24  ( -68.16, 173.73)    2.62                60
 07/03/2017   02:55:54   ( -68.42, -45.42) 07/03/2017   02:56:55  ( -68.41, -45.36)    2.60                61
 07/03/2017   03:46:37   (  68.24, 122.13) 07/03/2017   03:46:23  (  68.24, 122.07)    2.13                14
 07/03/2017   04:37:11   ( -67.73, -69.92) 07/03/2017   04:35:59  ( -67.80, -70.80)   38.01                72
 07/05/2017   19:12:47   ( -68.33,  70.47) 07/05/2017   19:13:25  ( -68.33,  70.42)    2.09                38
 07/05/2017   20:03:31   (  68.20,-122.06) 07/05/2017   20:02:52  (  68.21,-122.07)    1.35                39
 07/08/2017   10:39:07   (  68.86,  18.22) 07/08/2017   10:40:17  (  68.74,  19.17)   40.57                70
 07/08/2017   11:29:40   ( -68.29,-173.71) 07/08/2017   11:29:53  ( -68.30,-173.73)    1.49                13
 07/08/2017   12:20:24   (  68.17,  -6.24) 07/08/2017   12:19:20  (  68.18,  -6.23)    1.45                64
 07/11/2017   02:55:53   (  68.41, 134.61) 07/11/2017   02:56:51  (  68.43, 134.67)    3.48                58
 07/11/2017   03:46:34   ( -68.26, -57.89) 07/11/2017   03:46:22  ( -68.27, -57.88)    1.57                12
 07/11/2017   04:37:08   (  67.60, 110.24) 07/11/2017   04:35:58  (  67.65, 109.03)   51.33                70