Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 7 16.  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)
 07/17/2019   02:06:00   ( -69.33, -34.13) 07/17/2019   02:07:07  ( -69.23, -31.98)   85.44                67
 07/17/2019   02:56:28   (  68.34, 134.52) 07/17/2019   02:56:48  (  68.34, 134.55)    1.43                20
 07/17/2019   03:47:09   ( -68.22, -58.00) 07/17/2019   03:46:18  ( -68.24, -57.94)    3.21                51
 07/19/2019   18:22:40   ( -68.49,  82.80) 07/19/2019   18:23:51  ( -68.45,  82.91)    6.45                71
 07/19/2019   19:13:23   (  68.30,-109.65) 07/19/2019   19:13:19  (  68.27,-109.65)    2.61                 4
 07/19/2019   20:04:03   ( -68.12,  57.90) 07/19/2019   20:02:50  ( -68.12,  57.79)    4.33                73
 07/22/2019   10:39:33   ( -68.39,-161.30) 07/22/2019   10:40:21  ( -68.41,-161.26)    3.24                48
 07/22/2019   11:30:17   (  68.25,   6.17) 07/22/2019   11:29:49  (  68.24,   6.18)    2.01                28
 07/22/2019   12:20:42   ( -67.26, 174.71) 07/22/2019   12:19:34  ( -67.30, 172.74)   85.05                68
 07/25/2019   02:06:02   (  69.28, 145.94) 07/25/2019   02:07:10  (  69.17, 147.92)   79.33                68
 07/25/2019   02:56:28   ( -68.34, -45.47) 07/25/2019   02:56:53  ( -68.35, -45.47)    0.85                25
 07/25/2019   03:47:12   (  68.21, 122.00) 07/25/2019   03:46:20  (  68.23, 122.03)    2.14                52
 07/27/2019   18:22:43   (  68.49, -97.21) 07/27/2019   18:23:54  (  68.46, -97.10)    5.86                71
 07/27/2019   19:13:23   ( -68.29,  70.36) 07/27/2019   19:13:25  ( -68.31,  70.36)    1.81                 2
 07/27/2019   20:04:06   (  68.12,-122.11) 07/27/2019   20:02:53  (  68.13,-122.21)    4.48                73