Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 7 21.  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)
 07/21/2016   10:40:05   (  68.46,  18.69) 07/21/2016   10:41:12  (  68.49,  18.68)    3.44                67
 07/21/2016   11:30:47   ( -68.37,-173.87) 07/21/2016   11:30:42  ( -68.39,-173.81)    3.27                 5
 07/21/2016   12:21:26   (  67.99,  -6.07) 07/21/2016   12:20:14  (  67.99,  -6.64)   23.64                72
 07/24/2016   02:56:59   (  68.46, 134.47) 07/24/2016   02:57:41  (  68.44, 134.50)    2.72                42
 07/24/2016   03:47:40   ( -68.31, -58.02) 07/24/2016   03:47:11  ( -68.34, -57.99)    3.27                29
 07/26/2016   18:23:22   ( -69.32,  81.77) 07/26/2016   18:24:30  ( -69.16,  83.65)   76.09                68
 07/26/2016   19:13:50   (  68.36,-109.62) 07/26/2016   19:14:09  (  68.38,-109.69)    3.63                19
 07/26/2016   20:04:32   ( -68.26,  57.82) 07/26/2016   20:03:39  ( -68.28,  57.82)    2.18                53
 07/29/2016   10:40:00   ( -68.47,-161.30) 07/29/2016   10:41:10  ( -68.48,-161.33)    1.79                70
 07/29/2016   11:30:44   (  68.36,   6.14) 07/29/2016   11:30:37  (  68.36,   6.17)    1.24                 7
 07/29/2016   12:21:22   ( -68.05, 173.87) 07/29/2016   12:20:10  ( -68.10, 173.49)   16.50                72
 08/01/2016   02:56:54   ( -68.48, -45.54) 08/01/2016   02:57:38  ( -68.46, -45.47)    3.37                44
 08/01/2016   03:47:37   (  68.32, 121.98) 08/01/2016   03:47:05  (  68.33, 122.02)    2.42                32
 08/01/2016   04:38:00   ( -67.19, -69.32) 08/01/2016   04:36:53  ( -67.23, -71.61)   98.54                67
 08/03/2016   18:23:17   (  69.18, -98.03) 08/03/2016   18:24:26  (  69.07, -96.45)   64.11                69
 08/03/2016   19:13:46   ( -68.38,  70.37) 08/03/2016   19:14:07  ( -68.36,  70.30)    3.31                21
 08/03/2016   20:04:30   (  68.28,-122.20) 08/03/2016   20:03:33  (  68.29,-122.14)    2.99                57