Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2015 3 6.  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)
 03/07/2015   22:48:41   (  69.01,-162.75) 03/07/2015   22:49:30  (  69.03,-162.81)    3.11                49
 03/07/2015   23:39:23   ( -68.92,   4.69) 03/07/2015   23:39:00  ( -68.93,   4.69)    0.47                23
 03/08/2015   00:29:50   (  67.89, 173.33) 03/08/2015   00:28:43  (  67.93, 171.13)   92.42                67
 03/10/2015   15:05:34   (  69.03, -47.00) 03/10/2015   15:06:11  (  69.04, -46.97)    1.87                37
 03/10/2015   15:56:15   ( -68.88, 120.52) 03/10/2015   15:55:42  ( -68.89, 120.47)    1.81                33
 03/13/2015   07:22:26   (  69.00,  68.81) 03/13/2015   07:23:00  (  68.98,  68.76)    2.64                34
 03/13/2015   08:13:08   ( -68.90,-123.74) 03/13/2015   08:12:30  ( -68.89,-123.72)    1.33                38
 03/15/2015   23:39:19   (  69.03,-175.46) 03/15/2015   23:39:54  (  69.03,-175.41)    2.29                35
 03/16/2015   00:30:00   ( -68.87,  -7.93) 03/16/2015   00:29:25  ( -68.89,  -7.95)    1.72                35
 03/18/2015   15:56:10   (  69.01, -59.66) 03/18/2015   15:56:55  (  69.00, -59.69)    1.63                45
 03/18/2015   16:46:52   ( -68.91, 107.80) 03/18/2015   16:46:25  ( -68.93, 107.85)    3.04                27