Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 10 24.  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)
 10/25/2017   18:22:58   (  68.47, -97.14) 10/25/2017   18:24:02  (  68.49, -97.10)    3.02                64
 10/25/2017   19:13:39   ( -68.34,  70.35) 10/25/2017   19:13:33  ( -68.34,  70.34)    0.65                 6
 10/25/2017   20:04:17   (  67.88,-121.76) 10/25/2017   20:03:05  (  67.94,-122.48)   30.73                72
 10/28/2017   10:39:52   (  68.41,  18.70) 10/28/2017   10:40:32  (  68.41,  18.69)    0.62                40
 10/28/2017   11:30:32   ( -68.29,-173.82) 10/28/2017   11:30:02  ( -68.26,-173.87)    3.44                30
 10/31/2017   02:06:14   ( -69.19, -33.88) 10/31/2017   02:07:23  ( -69.07, -32.26)   65.65                69
 10/31/2017   02:56:45   (  68.37, 134.53) 10/31/2017   02:57:00  (  68.40, 134.54)    3.41                15
 10/31/2017   03:47:26   ( -68.23, -57.98) 10/31/2017   03:46:31  ( -68.24, -58.01)    1.71                55
 11/02/2017   18:22:55   ( -68.44,  82.89) 11/02/2017   18:24:03  ( -68.45,  82.84)    1.91                68
 11/02/2017   19:13:39   (  68.32,-109.64) 11/02/2017   19:13:30  (  68.32,-109.66)    1.02                 9
 11/02/2017   20:04:16   ( -67.97,  58.12) 11/02/2017   20:03:04  ( -68.01,  57.60)   22.36                72
 11/05/2017   10:39:50   ( -68.45,-161.35) 11/05/2017   10:40:32  ( -68.44,-161.29)    2.94                42
 11/05/2017   11:30:33   (  68.28,   6.18) 11/05/2017   11:30:00  (  68.26,   6.14)    2.65                33