Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 22.  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)
 08/22/2017   19:13:14   ( -68.36,  70.36) 08/22/2017   19:13:49  ( -68.34,  70.31)    3.16                35
 08/22/2017   20:03:58   (  68.24,-122.18) 08/22/2017   20:03:16  (  68.23,-122.18)    1.41                42
 08/25/2017   10:39:33   (  68.71,  18.36) 08/25/2017   10:40:44  (  68.65,  18.92)   23.66                71
 08/25/2017   11:30:10   ( -68.34,-173.85) 08/25/2017   11:30:18  ( -68.32,-173.85)    2.56                 8
 08/25/2017   12:20:54   (  68.22,  -6.39) 08/25/2017   12:19:45  (  68.20,  -6.34)    3.04                69
 08/28/2017   02:56:25   (  68.42, 134.50) 08/28/2017   02:57:18  (  68.39, 134.48)    3.35                53
 08/28/2017   03:47:06   ( -68.27, -57.99) 08/28/2017   03:46:48  ( -68.29, -58.01)    2.27                18
 08/28/2017   04:37:36   (  67.40, 110.40) 08/28/2017   04:36:28  (  67.44, 108.66)   74.27                68
 08/30/2017   19:13:21   (  68.35,-109.65) 08/30/2017   19:13:48  (  68.35,-109.69)    1.65                27
 08/30/2017   20:04:03   ( -68.25,  57.80) 08/30/2017   20:03:18  ( -68.25,  57.82)    1.07                45
 09/02/2017   10:39:37   ( -68.61,-161.53) 09/02/2017   10:40:49  ( -68.54,-161.23)   14.37                72
 09/02/2017   11:30:18   (  68.34,   6.14) 09/02/2017   11:30:18  (  68.31,   6.14)    3.16                 0
 09/02/2017   12:20:59   ( -68.18, 173.65) 09/02/2017   12:19:48  ( -68.21, 173.65)    2.87                71
 09/05/2017   02:56:30   ( -68.43, -45.53) 09/05/2017   02:57:19  ( -68.43, -45.48)    2.09                49
 09/05/2017   03:47:13   (  68.27, 121.99) 09/05/2017   03:46:47  (  68.26, 121.95)    1.89                26
 09/05/2017   04:37:39   ( -67.31, -69.51) 09/05/2017   04:36:31  ( -67.38, -71.43)   82.54                68