Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 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)
 12/07/2017   10:39:39   ( -68.36,-161.26) 12/07/2017   10:40:28  ( -68.39,-161.26)    2.96                49
 12/07/2017   11:30:23   (  68.25,   6.19) 12/07/2017   11:29:56  (  68.22,   6.18)    3.38                27
 12/07/2017   12:20:48   ( -67.24, 174.74) 12/07/2017   12:19:40  ( -67.33, 172.80)   84.20                68
 12/10/2017   02:06:07   (  69.30, 145.92) 12/10/2017   02:07:14  (  69.18, 147.99)   82.68                67
 12/10/2017   02:56:33   ( -68.35, -45.48) 12/10/2017   02:56:57  ( -68.35, -45.42)    2.54                24
 12/10/2017   03:47:16   (  68.18, 122.04) 12/10/2017   03:46:25  (  68.18, 122.02)    1.03                51
 12/12/2017   18:22:45   (  68.44, -97.14) 12/12/2017   18:23:56  (  68.43, -97.08)    3.04                71
 12/12/2017   19:13:26   ( -68.29,  70.38) 12/12/2017   19:13:27  ( -68.27,  70.37)    2.03                 1
 12/12/2017   20:04:08   (  68.07,-122.04) 12/12/2017   20:02:55  (  68.09,-122.19)    6.95                73
 12/15/2017   10:39:37   (  68.33,  18.78) 12/15/2017   10:40:26  (  68.35,  18.71)    3.30                49
 12/15/2017   11:30:19   ( -68.23,-173.77) 12/15/2017   11:29:56  ( -68.25,-173.78)    2.22                23
 12/15/2017   12:20:46   (  67.20,  -5.21) 12/15/2017   12:19:39  (  67.23,  -7.29)   89.67                67
 12/18/2017   02:06:06   ( -69.44, -34.27) 12/18/2017   02:07:12  ( -69.34, -31.80)   97.42                66
 12/18/2017   02:56:30   (  68.33, 134.55) 12/18/2017   02:56:54  (  68.33, 134.57)    0.96                24
 12/18/2017   03:47:11   ( -68.17, -57.93) 12/18/2017   03:46:25  ( -68.18, -57.98)    2.14                46