Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 7 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)
 07/25/2019   02:06:00   (  69.16, 146.10) 07/25/2019   02:07:08  (  69.06, 147.80)   68.18                68
 07/25/2019   02:56:28   ( -68.34, -45.47) 07/25/2019   02:56:49  ( -68.34, -45.46)    0.70                21
 07/25/2019   03:47:12   (  68.20, 122.01) 07/25/2019   03:46:17  (  68.18, 121.98)    3.04                55
 07/27/2019   18:22:42   (  68.43, -97.13) 07/27/2019   18:23:48  (  68.44, -97.10)    2.22                66
 07/27/2019   19:13:23   ( -68.30,  70.35) 07/27/2019   19:13:19  ( -68.28,  70.34)    1.72                 4
 07/27/2019   20:04:02   (  67.89,-121.83) 07/27/2019   20:02:50  (  67.94,-122.41)   24.99                72
 07/30/2019   10:39:36   (  68.39,  18.68) 07/30/2019   10:40:17  (  68.37,  18.70)    2.21                41
 07/30/2019   11:30:17   ( -68.26,-173.82) 07/30/2019   11:29:47  ( -68.27,-173.79)    1.98                30
 08/02/2019   02:06:00   ( -69.18, -33.91) 08/02/2019   02:07:08  ( -69.08, -32.18)   69.15                68
 08/02/2019   02:56:31   (  68.36, 134.50) 08/02/2019   02:56:46  (  68.35, 134.55)    2.29                15
 08/02/2019   03:47:12   ( -68.22, -58.00) 08/02/2019   03:46:17  ( -68.20, -58.00)    2.38                55
 08/04/2019   18:22:42   ( -68.45,  82.85) 08/04/2019   18:23:48  ( -68.45,  82.91)    2.41                66
 08/04/2019   19:13:25   (  68.27,-109.62) 08/04/2019   19:13:16  (  68.27,-109.66)    1.77                 9
 08/04/2019   20:04:02   ( -67.92,  58.15) 08/04/2019   20:02:50  ( -67.95,  57.59)   23.68                72
 08/07/2019   10:39:36   ( -68.36,-161.27) 08/07/2019   10:40:18  ( -68.37,-161.32)    2.06                42
 08/07/2019   11:30:20   (  68.24,   6.19) 08/07/2019   11:29:45  (  68.25,   6.18)    0.28                35