Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 9 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)
 09/23/2016   10:39:43   (  68.46,  18.75) 09/23/2016   10:40:32  (  68.46,  18.78)    1.18                49
 09/23/2016   11:30:24   ( -68.33,-173.76) 09/23/2016   11:30:02  ( -68.35,-173.71)    2.91                22
 09/23/2016   12:20:52   (  67.32,  -5.21) 09/23/2016   12:19:44  (  67.40,  -7.17)   84.04                68
 09/26/2016   02:06:13   ( -69.45, -34.16) 09/26/2016   02:07:20  ( -69.36, -31.84)   91.14                67
 09/26/2016   02:56:40   (  68.41, 134.58) 09/26/2016   02:57:02  (  68.42, 134.61)    1.76                22
 09/26/2016   03:47:21   ( -68.28, -57.94) 09/26/2016   03:46:33  ( -68.26, -57.95)    2.69                48
 09/28/2016   18:22:53   ( -68.50,  82.91) 09/28/2016   18:24:05  ( -68.48,  82.92)    1.86                72
 09/28/2016   19:13:37   (  68.36,-109.60) 09/28/2016   19:13:32  (  68.37,-109.57)    1.48                 5
 09/28/2016   20:04:17   ( -68.18,  57.95) 09/28/2016   20:03:03  ( -68.21,  57.87)    4.63                74
 10/01/2016   10:39:50   ( -68.45,-161.27) 10/01/2016   10:40:35  ( -68.42,-161.27)    3.16                45
 10/01/2016   11:30:33   (  68.32,   6.21) 10/01/2016   11:30:01  (  68.31,   6.24)    1.61                32
 10/04/2016   02:06:15   (  69.08, 146.33) 10/04/2016   02:07:24  (  69.01, 147.71)   55.62                69
 10/04/2016   02:56:46   ( -68.41, -45.46) 10/04/2016   02:57:03  ( -68.41, -45.40)    2.18                17
 10/04/2016   03:47:29   (  68.22, 122.09) 10/04/2016   03:46:31  (  68.24, 122.03)    2.84                58