Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 10 13.  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)
 10/14/2016   18:22:58   ( -68.48,  82.93) 10/14/2016   18:24:03  ( -68.48,  82.90)    1.20                65
 10/14/2016   19:13:42   (  68.34,-109.58) 10/14/2016   19:13:30  (  68.36,-109.60)    2.62                12
 10/14/2016   20:04:17   ( -67.90,  58.30) 10/14/2016   20:03:05  ( -67.98,  57.58)   31.32                72
 10/17/2016   10:39:53   ( -68.43,-161.25) 10/17/2016   10:40:32  ( -68.44,-161.28)    1.30                39
 10/17/2016   11:30:37   (  68.30,   6.24) 10/17/2016   11:29:59  (  68.32,   6.23)    2.73                38
 10/20/2016   02:06:14   (  68.95, 146.51) 10/20/2016   02:07:24  (  68.82, 147.44)   39.84                70
 10/20/2016   02:56:47   ( -68.39, -45.42) 10/20/2016   02:57:00  ( -68.39, -45.46)    1.39                13
 10/20/2016   03:47:31   (  68.25, 122.05) 10/20/2016   03:46:27  (  68.27, 122.04)    1.52                64
 10/22/2016   18:23:01   (  68.48, -97.10) 10/22/2016   18:23:58  (  68.48, -97.10)    0.16                57
 10/22/2016   19:13:42   ( -68.34,  70.39) 10/22/2016   19:13:29  ( -68.32,  70.35)    2.71                13
 10/22/2016   20:04:15   (  67.62,-121.40) 10/22/2016   20:03:05  (  67.70,-122.74)   57.44                70
 10/25/2016   10:39:56   (  68.44,  18.71) 10/25/2016   10:40:26  (  68.46,  18.76)    3.13                30
 10/25/2016   11:30:37   ( -68.30,-173.79) 10/25/2016   11:29:57  ( -68.31,-173.79)    0.89                40