Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 12 5.  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)
 12/07/2018   18:22:46   ( -68.41,  82.92) 12/07/2018   18:23:56  ( -68.42,  82.91)    1.96                70
 12/07/2018   19:13:30   (  68.28,-109.61) 12/07/2018   19:13:24  (  68.27,-109.63)    1.52                 6
 12/07/2018   20:04:09   ( -68.04,  58.01) 12/07/2018   20:02:55  ( -68.09,  57.79)   11.08                74
 12/10/2018   10:39:40   ( -68.35,-161.24) 12/10/2018   10:40:23  ( -68.38,-161.25)    2.96                43
 12/10/2018   11:30:24   (  68.23,   6.22) 12/10/2018   11:29:51  (  68.22,   6.20)    1.26                33
 12/13/2018   02:06:03   (  68.98, 146.37) 12/13/2018   02:07:13  (  68.85, 147.59)   50.91                70
 12/13/2018   02:56:34   ( -68.30, -45.41) 12/13/2018   02:56:51  ( -68.28, -45.47)    3.08                17
 12/13/2018   03:47:18   (  68.18, 122.05) 12/13/2018   03:46:18  (  68.18, 122.05)    0.11                60
 12/15/2018   18:22:46   (  68.40, -97.08) 12/15/2018   18:23:47  (  68.37, -97.11)    3.02                61
 12/15/2018   19:13:27   ( -68.25,  70.43) 12/15/2018   19:13:17  ( -68.25,  70.38)    2.01                10
 12/15/2018   20:04:02   (  67.65,-121.52) 12/15/2018   20:02:52  (  67.70,-122.62)   46.81                70
 12/18/2018   10:39:40   (  68.35,  18.74) 12/18/2018   10:40:14  (  68.35,  18.75)    0.52                34
 12/18/2018   11:30:22   ( -68.25,-173.81) 12/18/2018   11:29:44  ( -68.23,-173.75)    3.06                38