Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 7 23.  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)   68.11                68
 07/25/2019   02:56:28   ( -68.34, -45.47) 07/25/2019   02:56:49  ( -68.34, -45.46)    0.38                21
 07/25/2019   03:47:12   (  68.20, 122.01) 07/25/2019   03:46:16  (  68.23, 122.05)    3.30                56
 07/27/2019   18:22:42   (  68.43, -97.13) 07/27/2019   18:23:48  (  68.43, -97.11)    0.97                66
 07/27/2019   19:13:23   ( -68.30,  70.36) 07/27/2019   19:13:19  ( -68.27,  70.33)    3.11                 4
 07/27/2019   20:04:02   (  67.89,-121.83) 07/27/2019   20:02:50  (  67.93,-122.42)   25.24                72
 07/30/2019   10:39:36   (  68.39,  18.68) 07/30/2019   10:40:16  (  68.40,  18.74)    2.43                40
 07/30/2019   11:30:17   ( -68.26,-173.82) 07/30/2019   11:29:47  ( -68.24,-173.82)    1.26                30
 08/02/2019   02:05:59   ( -69.12, -33.83) 08/02/2019   02:07:08  ( -69.04, -32.23)   64.19                69
 08/02/2019   02:56:30   (  68.30, 134.57) 08/02/2019   02:56:46  (  68.31, 134.51)    2.62                16
 08/02/2019   03:47:12   ( -68.22, -58.00) 08/02/2019   03:46:16  ( -68.21, -57.98)    1.30                56
 08/04/2019   18:22:42   ( -68.45,  82.85) 08/04/2019   18:23:47  ( -68.44,  82.90)    2.22                65
 08/04/2019   19:13:25   (  68.27,-109.62) 08/04/2019   19:13:15  (  68.26,-109.67)    2.18                10
 08/04/2019   20:04:01   ( -67.86,  58.22) 08/04/2019   20:02:49  ( -67.94,  57.59)   27.94                72