Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 12 2.  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)
 12/04/2017   18:22:47   ( -68.46,  82.83) 12/04/2017   18:23:59  ( -68.44,  82.92)    4.47                72
 12/04/2017   19:13:30   (  68.30,-109.64) 12/04/2017   19:13:27  (  68.27,-109.64)    2.74                 3
 12/04/2017   20:04:11   ( -68.15,  57.86) 12/04/2017   20:02:57  ( -68.17,  57.87)    1.84                74
 12/07/2017   10:39:40   ( -68.40,-161.31) 12/07/2017   10:40:28  ( -68.38,-161.27)    2.62                48
 12/07/2017   11:30:23   (  68.23,   6.22) 12/07/2017   11:29:56  (  68.20,   6.17)    3.44                27
 12/07/2017   12:20:48   ( -67.22, 174.77) 12/07/2017   12:19:41  ( -67.26, 172.73)   88.02                67
 12/10/2017   02:06:06   (  69.23, 146.02) 12/10/2017   02:07:14  (  69.13, 147.93)   76.33                68
 12/10/2017   02:56:33   ( -68.33, -45.45) 12/10/2017   02:56:57  ( -68.30, -45.47)    2.92                24
 12/10/2017   03:47:16   (  68.17, 122.07) 12/10/2017   03:46:24  (  68.19, 122.04)    2.51                52
 12/12/2017   18:22:45   (  68.42, -97.11) 12/12/2017   18:23:54  (  68.44, -97.05)    2.94                69
 12/12/2017   19:13:26   ( -68.26,  70.41) 12/12/2017   19:13:25  ( -68.28,  70.39)    1.73                 1
 12/12/2017   20:04:07   (  68.00,-121.95) 12/12/2017   20:02:54  (  68.05,-122.24)   13.44                73
 12/15/2017   10:39:37   (  68.36,  18.74) 12/15/2017   10:40:22  (  68.35,  18.73)    1.70                45
 12/15/2017   11:30:19   ( -68.26,-173.81) 12/15/2017   11:29:52  ( -68.24,-173.76)    2.27                27