Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 7 26.  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)
 07/27/2017   02:55:58   (  68.44, 134.56) 07/27/2017   02:57:07  (  68.44, 134.61)    2.16                69
 07/27/2017   03:46:39   ( -68.30, -57.94) 07/27/2017   03:46:38  ( -68.28, -57.95)    1.87                 1
 07/27/2017   04:37:20   (  68.01, 109.73) 07/27/2017   04:36:07  (  68.05, 109.43)   13.55                73
 07/29/2017   19:12:54   (  68.35,-109.56) 07/29/2017   19:13:39  (  68.35,-109.63)    2.70                45
 07/29/2017   20:03:36   ( -68.25,  57.88) 07/29/2017   20:03:09  ( -68.24,  57.88)    1.24                27
 08/01/2017   10:39:22   ( -69.23,-162.29) 08/01/2017   10:40:30  ( -69.14,-160.41)   75.24                68
 08/01/2017   11:29:51   (  68.31,   6.25) 08/01/2017   11:30:10  (  68.30,   6.20)    2.27                19
 08/01/2017   12:20:33   ( -68.22, 173.69) 08/01/2017   12:19:40  ( -68.20, 173.71)    1.60                53
 08/04/2017   02:56:05   ( -68.44, -45.47) 08/04/2017   02:57:13  ( -68.43, -45.42)    2.49                68
 08/04/2017   03:46:48   (  68.28, 122.05) 08/04/2017   03:46:41  (  68.26, 122.02)    2.95                 7
 08/04/2017   04:37:26   ( -67.96, -70.23) 08/04/2017   04:36:13  ( -68.05, -70.60)   18.03                73
 08/06/2017   19:13:00   ( -68.36,  70.41) 08/06/2017   19:13:43  ( -68.38,  70.39)    2.76                43
 08/06/2017   20:03:44   (  68.25,-122.14) 08/06/2017   20:03:10  (  68.26,-122.10)    2.15                34
 08/09/2017   10:39:26   (  69.02,  17.97) 08/09/2017   10:40:35  (  68.92,  19.31)   54.59                69
 08/09/2017   11:29:57   ( -68.32,-173.78) 08/09/2017   11:30:14  ( -68.32,-173.80)    0.72                17
 08/09/2017   12:20:41   (  68.22,  -6.34) 08/09/2017   12:19:41  (  68.21,  -6.30)    2.39                60