Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 4 15.  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)
 04/16/2015   23:38:32   (  68.94,-175.30) 04/16/2015   23:39:08  (  68.96,-175.28)    1.83                36
 04/17/2015   00:29:13   ( -68.81,  -7.79) 04/17/2015   00:28:39  ( -68.79,  -7.86)    2.97                34
 04/19/2015   15:04:50   ( -69.67, 132.16) 04/19/2015   15:05:59  ( -69.51, 133.70)   62.06                69
 04/19/2015   15:55:22   (  68.91, -59.47) 04/19/2015   15:55:35  (  68.90, -59.46)    1.42                13
 04/19/2015   16:46:03   ( -68.77, 108.03) 04/19/2015   16:45:05  ( -68.79, 108.04)    2.38                58
 04/22/2015   07:21:27   ( -69.00,-111.13) 04/22/2015   07:22:33  ( -68.99,-111.09)    1.88                66
 04/22/2015   08:12:11   (  68.89,  56.34) 04/22/2015   08:12:00  (  68.88,  56.41)    3.22                11
 04/22/2015   09:02:47   ( -68.48,-135.80) 04/22/2015   09:01:34  ( -68.55,-136.37)   24.14                73
 04/24/2015   23:38:16   ( -68.93,   4.75) 04/24/2015   23:38:59  ( -68.95,   4.75)    1.51                43
 04/25/2015   00:29:00   (  68.82, 172.21) 04/25/2015   00:28:26  (  68.82, 172.24)    1.28                34
 04/27/2015   15:04:36   (  69.65, -47.80) 04/27/2015   15:05:45  (  69.53, -46.22)   62.77                69
 04/27/2015   15:55:05   ( -68.87, 120.62) 04/27/2015   15:55:25  ( -68.88, 120.56)    2.44                20
 04/27/2015   16:45:49   (  68.76, -71.93) 04/27/2015   16:44:52  (  68.75, -71.95)    1.63                57