Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 25.  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)
 08/25/2017   10:39:33   (  68.70,  18.37) 08/25/2017   10:40:45  (  68.60,  18.87)   23.25                72
 08/25/2017   11:30:10   ( -68.34,-173.84) 08/25/2017   11:30:18  ( -68.32,-173.84)    2.08                 8
 08/25/2017   12:20:54   (  68.22,  -6.38) 08/25/2017   12:19:45  (  68.21,  -6.32)    2.51                69
 08/28/2017   02:56:25   (  68.42, 134.50) 08/28/2017   02:57:18  (  68.40, 134.50)    1.48                53
 08/28/2017   03:47:06   ( -68.27, -57.99) 08/28/2017   03:46:48  ( -68.30, -57.99)    3.02                18
 08/28/2017   04:37:36   (  67.39, 110.40) 08/28/2017   04:36:28  (  67.46, 108.68)   73.75                68
 08/30/2017   19:13:21   (  68.35,-109.64) 08/30/2017   19:13:48  (  68.37,-109.66)    2.41                27
 08/30/2017   20:04:03   ( -68.25,  57.80) 08/30/2017   20:03:18  ( -68.27,  57.85)    2.58                45
 09/02/2017   10:39:37   ( -68.62,-161.54) 09/02/2017   10:40:49  ( -68.56,-161.20)   15.08                72
 09/02/2017   11:30:18   (  68.34,   6.13) 09/02/2017   11:30:18  (  68.34,   6.18)    1.92                 0
 09/02/2017   12:20:59   ( -68.19, 173.64) 09/02/2017   12:19:49  ( -68.18, 173.62)    1.74                70
 09/05/2017   02:56:29   ( -68.39, -45.48) 09/05/2017   02:57:20  ( -68.41, -45.50)    2.29                51
 09/05/2017   03:47:13   (  68.28, 121.98) 09/05/2017   03:46:47  (  68.30, 122.01)    2.16                26
 09/05/2017   04:37:39   ( -67.32, -69.52) 09/05/2017   04:36:31  ( -67.41, -71.38)   80.17                68
 09/07/2017   18:22:59   (  69.29, -98.25) 09/07/2017   18:24:07  (  69.19, -96.27)   78.63                68
 09/07/2017   19:13:26   ( -68.39,  70.29) 09/07/2017   19:13:50  ( -68.37,  70.33)    2.41                24
 09/07/2017   20:04:09   (  68.22,-122.19) 09/07/2017   20:03:17  (  68.25,-122.17)    3.35                52