Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 1 17.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/19/2012   02:55:24   (  68.45, 134.61) (  68.44, 134.56)    2.93                70
 01/19/2012   03:46:05   ( -68.33, -57.91) ( -68.33, -57.94)    1.22                 1
 01/19/2012   04:36:46   (  68.04, 109.77) (  68.10, 109.44)   15.66                73
 01/21/2012   19:12:13   (  68.44,-109.58) (  68.43,-109.56)    1.04                48
 01/21/2012   20:02:54   ( -68.31,  57.91) ( -68.33,  57.95)    2.80                23
 01/21/2012   20:53:21   (  67.26,-133.50) (  67.31,-135.57)   89.09                67
 01/24/2012   11:29:00   (  68.38,   6.29) (  68.36,   6.24)    2.83                28
 01/24/2012   12:19:41   ( -68.25, 173.78) ( -68.26, 173.76)    1.66                43
 01/27/2012   02:55:12   ( -68.88, -45.89) ( -68.73, -45.06)   37.17                71
 01/27/2012   03:45:48   (  68.33, 122.14) (  68.33, 122.10)    1.58                 7
 01/27/2012   04:36:30   ( -68.25, -70.44) ( -68.23, -70.39)    2.83                65
 01/29/2012   19:11:53   ( -68.46,  70.45) ( -68.47,  70.51)    2.60                61
 01/29/2012   20:02:36   (  68.30,-122.03) (  68.29,-122.06)    1.86                14
 01/29/2012   20:53:10   ( -67.78,  45.94) ( -67.80,  45.00)   39.56                71