Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 6 22.  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)
 06/22/2015   15:55:05   (  69.70, -60.69) 06/22/2015   15:56:12  (  69.61, -58.70)   77.54                67
 06/22/2015   16:45:32   ( -68.82, 107.86) 06/22/2015   16:45:54  ( -68.84, 107.91)    2.60                22
 06/22/2015   17:36:16   (  68.69, -84.66) 06/22/2015   17:35:22  (  68.68, -84.64)    1.98                54
 06/25/2015   08:11:45   (  68.97,  56.11) 06/25/2015   08:12:56  (  68.92,  56.26)    8.16                71
 06/25/2015   09:02:25   ( -68.78,-136.32) 06/25/2015   09:02:27  ( -68.76,-136.32)    2.37                 2
 06/25/2015   09:53:08   (  68.60,  31.23) 06/25/2015   09:51:55  (  68.60,  31.13)    4.12                73
 06/28/2015   00:28:35   (  68.83, 172.06) 06/28/2015   00:29:28  (  68.83, 172.01)    2.41                53
 06/28/2015   01:19:17   ( -68.74, -20.50) 06/28/2015   01:18:58  ( -68.72, -20.49)    2.26                19
 06/28/2015   02:09:46   (  67.82, 147.99) 06/28/2015   02:08:38  (  67.88, 146.15)   77.77                68
 06/30/2015   16:45:28   (  68.81, -72.13) 06/30/2015   16:45:59  (  68.83, -72.12)    2.49                31
 06/30/2015   17:36:09   ( -68.66,  95.38) 06/30/2015   17:35:30  ( -68.67,  95.32)    3.06                39
 07/03/2015   08:11:47   ( -69.42,-124.53) 07/03/2015   08:12:57  ( -69.27,-123.33)   50.14                70
 07/03/2015   09:02:21   (  68.79,  43.66) 07/03/2015   09:02:31  (  68.76,  43.67)    2.65                10
 07/03/2015   09:53:03   ( -68.69,-148.89) 07/03/2015   09:52:01  ( -68.67,-148.82)    3.51                62
 07/06/2015   00:28:30   ( -68.87,  -7.99) 07/06/2015   00:29:35  ( -68.86,  -7.98)    1.12                65
 07/06/2015   01:19:13   (  68.72, 159.53) 07/06/2015   01:19:02  (  68.74, 159.51)    2.47                11