Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 4 7.  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)
 04/08/2015   23:38:44   ( -68.96,   4.66) 04/08/2015   23:39:16  ( -68.95,   4.67)    1.84                32
 04/09/2015   00:29:28   (  68.85, 172.12) 04/09/2015   00:28:43  (  68.84, 172.17)    2.44                45
 04/11/2015   15:04:59   (  69.37, -47.45) 04/11/2015   15:06:10  (  69.23, -46.71)   33.17                71
 04/11/2015   15:55:34   ( -68.91, 120.51) 04/11/2015   15:55:44  ( -68.90, 120.50)    1.00                10
 04/11/2015   16:46:18   (  68.80, -72.03) 04/11/2015   16:45:11  (  68.79, -72.00)    1.64                67
 04/14/2015   07:21:43   (  69.01,  68.84) 04/14/2015   07:22:41  (  68.98,  68.86)    2.85                58
 04/14/2015   08:12:24   ( -68.86,-123.65) 04/14/2015   08:12:11  ( -68.88,-123.63)    2.16                13
 04/14/2015   09:02:57   (  68.16,  44.58) 04/14/2015   09:01:48  (  68.20,  43.18)   58.05                69
 04/16/2015   23:38:31   (  68.92,-175.26) 04/16/2015   23:39:07  (  68.93,-175.31)    2.66                36
 04/17/2015   00:29:13   ( -68.82,  -7.81) 04/17/2015   00:28:37  ( -68.83,  -7.80)    0.99                36
 04/19/2015   15:04:48   ( -69.58, 132.29) 04/19/2015   15:05:58  ( -69.47, 133.64)   54.01                70
 04/19/2015   15:55:21   (  68.88, -59.44) 04/19/2015   15:55:33  (  68.90, -59.45)    2.05                12
 04/19/2015   16:46:03   ( -68.79, 108.01) 04/19/2015   16:45:03  ( -68.80, 108.06)    2.67                60