Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 11 14.  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)
 11/16/2017   02:06:15   ( -69.35, -34.14) 11/16/2017   02:07:22  ( -69.23, -32.01)   84.90                67
 11/16/2017   02:56:42   (  68.32, 134.57) 11/16/2017   02:57:03  (  68.34, 134.52)    2.77                21
 11/16/2017   03:47:24   ( -68.24, -58.01) 11/16/2017   03:46:33  ( -68.23, -57.97)    1.68                51
 11/18/2017   18:22:52   ( -68.47,  82.84) 11/18/2017   18:24:04  ( -68.43,  82.88)    3.74                72
 11/18/2017   19:13:35   (  68.29,-109.63) 11/18/2017   19:13:31  (  68.32,-109.62)    3.08                 4
 11/18/2017   20:04:15   ( -68.10,  57.94) 11/18/2017   20:03:03  ( -68.10,  57.76)    7.47                72
 11/21/2017   10:39:45   ( -68.38,-161.28) 11/21/2017   10:40:33  ( -68.41,-161.27)    3.06                48
 11/21/2017   11:30:29   (  68.26,   6.18) 11/21/2017   11:30:01  (  68.23,   6.17)    3.39                28
 11/21/2017   12:20:54   ( -67.26, 174.73) 11/21/2017   12:19:46  ( -67.29, 172.72)   86.33                68
 11/24/2017   02:06:12   (  69.25, 146.00) 11/24/2017   02:07:20  (  69.14, 147.90)   76.29                68
 11/24/2017   02:56:39   ( -68.35, -45.47) 11/24/2017   02:57:02  ( -68.37, -45.43)    3.01                23
 11/24/2017   03:47:22   (  68.19, 122.05) 11/24/2017   03:46:30  (  68.20, 122.01)    2.03                52
 11/26/2017   18:22:51   (  68.43, -97.12) 11/26/2017   18:24:01  (  68.43, -97.11)    0.58                70
 11/26/2017   19:13:32   ( -68.27,  70.40) 11/26/2017   19:13:32  ( -68.27,  70.34)    2.31                 0
 11/26/2017   20:04:13   (  68.00,-121.95) 11/26/2017   20:03:01  (  68.04,-122.29)   14.68                72