Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 7 11.  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)
 07/11/2015   08:11:45   (  69.61,  55.21) 07/11/2015   08:12:53  (  69.51,  57.01)   70.67                68
 07/11/2015   09:02:13   ( -68.77,-136.31) 07/11/2015   09:02:34  ( -68.80,-136.29)    3.17                21
 07/11/2015   09:52:57   (  68.65,  31.15) 07/11/2015   09:52:02  (  68.63,  31.15)    2.42                55
 07/14/2015   00:28:24   (  68.85, 172.04) 07/14/2015   00:29:35  (  68.84, 172.00)    1.73                71
 07/14/2015   01:19:06   ( -68.75, -20.51) 07/14/2015   01:19:05  ( -68.74, -20.49)    1.76                 1
 07/14/2015   02:09:47   (  68.48, 147.15) 07/14/2015   02:08:34  (  68.51, 146.87)   12.00                73
 07/16/2015   16:45:17   (  68.83, -72.17) 07/16/2015   16:46:05  (  68.82, -72.15)    2.31                48
 07/16/2015   17:35:58   ( -68.68,  95.35) 07/16/2015   17:35:36  ( -68.66,  95.29)    3.31                22
 07/16/2015   18:26:25   (  67.66, -96.04) 07/16/2015   18:25:18  (  67.70, -98.20)   91.32                67
 07/19/2015   09:02:08   (  68.77,  43.68) 07/19/2015   09:02:34  (  68.78,  43.68)    0.74                26
 07/19/2015   09:52:50   ( -68.67,-148.86) 07/19/2015   09:52:04  ( -68.68,-148.80)    2.86                46
 07/22/2015   00:28:22   ( -69.13,  -8.34) 07/22/2015   00:29:34  ( -69.02,  -7.78)   25.40                72
 07/22/2015   01:19:00   (  68.71, 159.54) 07/22/2015   01:19:04  (  68.73, 159.50)    2.39                 4
 07/22/2015   02:09:42   ( -68.60, -33.01) 07/22/2015   02:08:35  ( -68.58, -33.05)    3.24                67
 07/24/2015   16:45:09   ( -68.80, 107.88) 07/24/2015   16:46:07  ( -68.79, 107.81)    2.86                58
 07/24/2015   17:35:53   (  68.70, -84.69) 07/24/2015   17:35:33  (  68.72, -84.63)    2.54                20
 07/24/2015   18:26:24   ( -68.00,  83.53) 07/24/2015   18:25:14  ( -68.02,  82.15)   57.56                70