Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 8 23.  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)
 08/25/2015   16:44:38   ( -68.88, 107.80) 08/25/2015   16:45:50  ( -68.83, 107.93)    7.65                72
 08/25/2015   17:35:20   (  68.66, -84.59) 08/25/2015   17:35:18  (  68.66, -84.63)    1.97                 2
 08/25/2015   18:26:01   ( -68.52,  82.91) 08/25/2015   18:24:49  ( -68.50,  82.80)    4.70                72
 08/28/2015   09:01:28   ( -68.77,-136.27) 08/28/2015   09:02:18  ( -68.77,-136.26)    0.59                50
 08/28/2015   09:52:12   (  68.65,  31.19) 08/28/2015   09:51:45  (  68.65,  31.24)    1.89                27
 08/28/2015   10:42:38   ( -67.70,-160.29) 08/28/2015   10:41:30  ( -67.71,-162.24)   82.53                68
 08/31/2015   00:27:55   (  69.75, 170.80) 08/31/2015   00:29:01  (  69.63, 173.12)   90.55                66
 08/31/2015   01:18:19   ( -68.71, -20.42) 08/31/2015   01:18:46  ( -68.70, -20.46)    2.11                27
 08/31/2015   02:09:03   (  68.59, 147.05) 08/31/2015   02:08:13  (  68.58, 147.04)    1.26                50
 09/02/2015   16:44:31   (  68.90, -72.22) 09/02/2015   16:45:41  (  68.88, -71.97)   10.01                70
 09/02/2015   17:35:10   ( -68.65,  95.43) 09/02/2015   17:35:13  ( -68.67,  95.40)    2.92                 3
 09/02/2015   18:25:52   (  68.48, -97.03) 09/02/2015   18:24:40  (  68.50, -97.18)    6.02                72
 09/05/2015   09:01:19   (  68.74,  43.77) 09/05/2015   09:02:09  (  68.74,  43.74)    1.30                50
 09/05/2015   09:52:01   ( -68.65,-148.79) 09/05/2015   09:51:39  ( -68.64,-148.75)    2.07                22
 09/05/2015   10:42:28   (  67.62,  19.82) 09/05/2015   10:41:21  (  67.68,  17.75)   87.69                67