Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 6 13.  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)
 06/14/2017   10:39:10   ( -68.88,-161.83) 06/14/2017   10:40:21  ( -68.78,-160.80)   43.07                71
 06/14/2017   11:29:45   (  68.26,   6.30) 06/14/2017   11:29:55  (  68.28,   6.23)    3.45                10
 06/14/2017   12:20:27   ( -68.19, 173.70) 06/14/2017   12:19:25  ( -68.17, 173.74)    2.76                62
 06/17/2017   02:55:56   ( -68.40, -45.42) 06/17/2017   02:56:57  ( -68.39, -45.40)    2.04                61
 06/17/2017   03:46:40   (  68.26, 122.07) 06/17/2017   03:46:24  (  68.27, 122.10)    1.66                16
 06/17/2017   04:37:13   ( -67.71, -69.92) 06/17/2017   04:36:01  ( -67.78, -70.84)   39.28                72
 06/19/2017   19:12:50   ( -68.35,  70.42) 06/19/2017   19:13:26  ( -68.37,  70.46)    2.85                36
 06/19/2017   20:03:34   (  68.22,-122.10) 06/19/2017   20:02:54  (  68.20,-122.10)    2.42                40
 06/22/2017   10:39:10   (  68.81,  18.26) 06/22/2017   10:40:21  (  68.67,  19.07)   36.44                71
 06/22/2017   11:29:44   ( -68.31,-173.75) 06/22/2017   11:29:56  ( -68.29,-173.75)    1.53                12
 06/22/2017   12:20:28   (  68.17,  -6.27) 06/22/2017   12:19:23  (  68.17,  -6.25)    1.02                65
 06/25/2017   02:55:56   (  68.40, 134.59) 06/25/2017   02:56:53  (  68.41, 134.64)    2.48                57
 06/25/2017   03:46:37   ( -68.26, -57.92) 06/25/2017   03:46:24  ( -68.26, -57.91)    0.43                13
 06/25/2017   04:37:10   (  67.54, 110.29) 06/25/2017   04:36:00  (  67.63, 109.00)   55.38                70