Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 5 29.  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)
 06/01/2017   02:55:57   ( -68.38, -45.40) 06/01/2017   02:56:57  ( -68.39, -45.40)    1.30                60
 06/01/2017   03:46:41   (  68.24, 122.08) 06/01/2017   03:46:25  (  68.22, 122.05)    2.03                16
 06/01/2017   04:37:13   ( -67.63, -69.84) 06/01/2017   04:36:02  ( -67.73, -70.90)   45.96                71
 06/03/2017   19:12:51   ( -68.32,  70.45) 06/03/2017   19:13:29  ( -68.33,  70.41)    2.51                38
 06/03/2017   20:03:36   (  68.23,-122.14) 06/03/2017   20:02:56  (  68.22,-122.08)    2.58                40
 06/06/2017   10:39:14   (  68.92,  18.10) 06/06/2017   10:40:24  (  68.80,  19.21)   46.92                70
 06/06/2017   11:29:46   ( -68.31,-173.77) 06/06/2017   11:30:01  ( -68.31,-173.75)    0.93                15
 06/06/2017   12:20:30   (  68.18,  -6.29) 06/06/2017   12:19:28  (  68.19,  -6.25)    2.67                62
 06/09/2017   02:55:58   (  68.39, 134.58) 06/09/2017   02:57:02  (  68.41, 134.60)    2.82                64
 06/09/2017   03:46:39   ( -68.26, -57.93) 06/09/2017   03:46:33  ( -68.26, -57.95)    0.69                 6
 06/09/2017   04:37:17   (  67.80, 109.95) 06/09/2017   04:36:05  (  67.86, 109.23)   30.92                72
 06/11/2017   19:12:52   (  68.34,-109.58) 06/11/2017   19:13:36  (  68.34,-109.62)    1.82                44
 06/11/2017   20:03:34   ( -68.26,  57.84) 06/11/2017   20:03:06  ( -68.24,  57.90)    2.93                28