Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 5 16.  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)
 05/16/2015   08:11:54   ( -68.87,-123.66) 05/16/2015   08:12:33  ( -68.90,-123.69)    2.85                39
 05/16/2015   09:02:38   (  68.73,  43.83) 05/16/2015   09:02:01  (  68.74,  43.76)    3.14                37
 05/18/2015   23:38:17   (  69.48,-176.07) 05/18/2015   23:39:27  (  69.36,-174.84)   49.49                70
 05/19/2015   00:28:49   ( -68.88,  -7.91) 05/19/2015   00:29:04  ( -68.86,  -7.86)    2.38                15
 05/19/2015   01:19:33   (  68.74, 159.59) 05/19/2015   01:18:32  (  68.70, 159.59)    3.66                61
 05/21/2015   15:55:01   (  68.91, -59.50) 05/21/2015   15:56:05  (  68.90, -59.56)    2.39                64
 05/21/2015   16:45:42   ( -68.78, 107.98) 05/21/2015   16:45:35  ( -68.79, 107.93)    2.54                 7
 05/21/2015   17:36:19   (  68.27, -84.04) 05/21/2015   17:35:08  (  68.35, -84.97)   39.30                71
 05/24/2015   08:11:55   (  68.88,  56.30) 05/24/2015   08:12:34  (  68.91,  56.32)    3.27                39
 05/24/2015   09:02:36   ( -68.75,-136.21) 05/24/2015   09:02:05  ( -68.74,-136.25)    1.72                31
 05/26/2015   23:38:16   ( -69.62,   3.71) 05/26/2015   23:39:25  ( -69.54,   5.39)   65.73                69
 05/27/2015   00:28:47   (  68.80, 172.16) 05/27/2015   00:29:03  (  68.82, 172.09)    3.22                16
 05/27/2015   01:19:29   ( -68.73, -20.41) 05/27/2015   01:18:33  ( -68.71, -20.40)    1.29                56
 05/29/2015   15:54:57   ( -68.92, 120.47) 05/29/2015   15:56:04  ( -68.92, 120.47)    0.64                67
 05/29/2015   16:45:41   (  68.79, -72.06) 05/29/2015   16:45:31  (  68.80, -72.04)    1.44                10
 05/29/2015   17:36:18   ( -68.44,  95.72) 05/29/2015   17:35:05  ( -68.48,  95.20)   21.88                73