Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 8 31.  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)
 08/31/2015   02:09:03   (  68.57, 147.07) 08/31/2015   02:08:13  (  68.56, 147.03)    2.00                50
 09/02/2015   16:44:29   (  68.82, -72.11) 09/02/2015   16:45:41  (  68.79, -72.07)    3.40                72
 09/02/2015   17:35:10   ( -68.69,  95.38) 09/02/2015   17:35:11  ( -68.68,  95.42)    1.96                 1
 09/02/2015   18:25:52   (  68.46, -97.00) 09/02/2015   18:24:40  (  68.46, -97.21)    8.33                72
 09/05/2015   09:01:19   (  68.71,  43.81) 09/05/2015   09:02:08  (  68.73,  43.74)    3.51                49
 09/05/2015   09:52:01   ( -68.64,-148.77) 09/05/2015   09:51:38  ( -68.63,-148.76)    1.20                23
 09/05/2015   10:42:28   (  67.59,  19.85) 09/05/2015   10:41:21  (  67.61,  17.69)   91.61                67
 09/08/2015   00:27:45   ( -69.80,  -9.24) 09/08/2015   00:28:51  ( -69.71,  -6.73)   97.32                66
 09/08/2015   01:18:11   (  68.71, 159.58) 09/08/2015   01:18:34  (  68.71, 159.61)    1.27                23
 09/08/2015   02:08:52   ( -68.58, -32.93) 09/08/2015   02:08:04  ( -68.61, -32.89)    3.30                48
 09/10/2015   16:44:20   ( -68.90, 107.80) 09/10/2015   16:45:32  ( -68.85, 108.04)   10.44                72
 09/10/2015   17:35:02   (  68.67, -84.58) 09/10/2015   17:35:00  (  68.68, -84.54)    2.27                 2
 09/10/2015   18:25:43   ( -68.53,  82.92) 09/10/2015   18:24:31  ( -68.52,  82.90)    1.51                72
 09/13/2015   09:01:08   ( -68.74,-136.21) 09/13/2015   09:01:58  ( -68.75,-136.20)    1.13                50
 09/13/2015   09:51:52   (  68.62,  31.26) 09/13/2015   09:51:25  (  68.63,  31.30)    1.99                27
 09/13/2015   10:42:18   ( -67.68,-160.23) 09/13/2015   10:41:10  ( -67.69,-162.18)   82.20                68