Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 3 10.  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)
 03/10/2018   19:12:42   (  68.33,-109.57) 03/10/2018   19:13:30  (  68.32,-109.57)    1.82                48
 03/10/2018   20:03:23   ( -68.21,  57.92) 03/10/2018   20:03:00  ( -68.22,  57.95)    1.63                23
 03/10/2018   20:53:50   (  67.15,-133.49) 03/10/2018   20:52:43  (  67.20,-135.57)   89.98                67
 03/13/2018   10:39:11   ( -69.35,-162.48) 03/13/2018   10:40:18  ( -69.23,-160.18)   91.35                67
 03/13/2018   11:29:37   (  68.26,   6.30) 03/13/2018   11:30:00  (  68.28,   6.27)    3.10                23
 03/13/2018   12:20:18   ( -68.13, 173.78) 03/13/2018   12:19:31  ( -68.13, 173.72)    2.67                47
 03/16/2018   02:55:50   ( -68.42, -45.45) 03/16/2018   02:57:02  ( -68.41, -45.34)    4.77                72
 03/16/2018   03:46:32   (  68.24, 122.09) 03/16/2018   03:46:29  (  68.24, 122.10)    0.24                 3
 03/16/2018   04:37:13   ( -68.10, -70.42) 03/16/2018   04:36:00  ( -68.08, -70.45)    2.36                73
 03/18/2018   19:12:44   ( -68.34,  70.41) 03/18/2018   19:13:31  ( -68.36,  70.47)    2.98                47
 03/18/2018   20:03:27   (  68.17,-122.05) 03/18/2018   20:02:59  (  68.18,-122.09)    2.13                28
 03/18/2018   20:53:52   ( -67.16,  46.48) 03/18/2018   20:52:45  ( -67.19,  44.41)   89.44                67
 03/21/2018   10:39:11   (  69.11,  17.83) 03/21/2018   10:40:19  (  69.05,  19.59)   70.20                68
 03/21/2018   11:29:39   ( -68.27,-173.73) 03/21/2018   11:30:01  ( -68.29,-173.73)    1.81                22
 03/21/2018   12:20:23   (  68.15,  -6.27) 03/21/2018   12:19:28  (  68.16,  -6.23)    2.05                55
 03/24/2018   02:55:53   (  68.35, 134.62) 03/24/2018   02:57:00  (  68.36, 134.60)    0.80                67
 03/24/2018   03:46:35   ( -68.25, -57.94) 03/24/2018   03:46:30  ( -68.26, -57.88)    2.76                 5
 03/24/2018   04:37:13   (  67.81, 109.92) 03/24/2018   04:36:01  (  67.91, 109.36)   25.84                72