Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 8 21.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/22/2012   03:44:59   (  68.29, 122.01) (  68.31, 122.05)    2.93                62
 08/22/2012   04:35:40   ( -68.17, -70.51) ( -68.15, -70.50)    2.08                 8
 08/22/2012   05:26:17   (  67.65,  97.44) (  67.70,  96.62)   35.07                72
 08/24/2012   20:01:52   (  68.22,-122.12) (  68.22,-122.19)    2.83                41
 08/24/2012   20:52:33   ( -68.09,  45.36) ( -68.12,  45.33)    3.06                30
 08/27/2012   11:28:16   ( -69.09,-174.81) ( -69.01,-172.98)   73.38                68
 08/27/2012   12:18:46   (  68.20,  -6.33) (  68.23,  -6.30)    2.95                17
 08/27/2012   13:09:27   ( -68.08, 161.15) ( -68.07, 161.15)    0.51                53
 08/30/2012   03:44:55   ( -68.28, -57.97) ( -68.29, -58.00)    1.75                72
 08/30/2012   04:35:39   (  68.15, 109.51) (  68.17, 109.50)    2.58                 5
 08/30/2012   05:26:19   ( -67.97, -82.94) ( -67.96, -83.11)    6.88                73
 09/01/2012   20:01:48   ( -68.29,  57.80) ( -68.28,  57.87)    2.80                48
 09/01/2012   20:52:31   (  68.10,-134.66) (  68.10,-134.70)    1.87                27
 09/01/2012   21:42:57   ( -67.16,  33.80) ( -67.17,  31.88)   82.95                68