Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 8 30.  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   00:27:55   (  69.73, 170.83) 08/31/2015   00:29:01  (  69.62, 173.12)   88.98                66
 08/31/2015   01:18:20   ( -68.75, -20.47) 08/31/2015   01:18:45  ( -68.73, -20.41)    2.81                25
 08/31/2015   02:09:03   (  68.56, 147.08) 08/31/2015   02:08:13  (  68.57, 147.03)    1.95                50
 09/02/2015   16:44:29   (  68.82, -72.11) 09/02/2015   16:45:41  (  68.80, -72.06)    2.39                72
 09/02/2015   17:35:10   ( -68.69,  95.39) 09/02/2015   17:35:11  ( -68.69,  95.43)    1.96                 1
 09/02/2015   18:25:52   (  68.45, -97.00) 09/02/2015   18:24:40  (  68.47, -97.20)    8.43                72
 09/05/2015   09:01:20   (  68.76,  43.74) 09/05/2015   09:02:08  (  68.74,  43.75)    2.09                48
 09/05/2015   09:52:01   ( -68.63,-148.76) 09/05/2015   09:51:38  ( -68.64,-148.75)    0.98                23
 09/05/2015   10:42:28   (  67.59,  19.86) 09/05/2015   10:41:21  (  67.62,  17.70)   91.52                67
 09/08/2015   00:27:45   ( -69.79,  -9.23) 09/08/2015   00:28:51  ( -69.73,  -6.71)   97.29                66
 09/08/2015   01:18:11   (  68.71, 159.59) 09/08/2015   01:18:34  (  68.73, 159.62)    2.31                23
 09/08/2015   02:08:52   ( -68.58, -32.92) 09/08/2015   02:08:05  ( -68.56, -32.94)    1.59                47
 09/10/2015   16:44:21   ( -68.94, 107.74) 09/10/2015   16:45:32  ( -68.87, 108.05)   14.89                71
 09/10/2015   17:35:02   (  68.66, -84.57) 09/10/2015   17:35:01  (  68.64, -84.59)    2.65                 1
 09/10/2015   18:25:43   ( -68.52,  82.93) 09/10/2015   18:24:31  ( -68.53,  82.92)    1.11                72