Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 6 17.  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)
 06/19/2017   19:12:50   ( -68.34,  70.43) 06/19/2017   19:13:27  ( -68.36,  70.44)    1.98                37
 06/19/2017   20:03:34   (  68.20,-122.08) 06/19/2017   20:02:55  (  68.19,-122.12)    2.42                39
 06/22/2017   10:39:10   (  68.85,  18.21) 06/22/2017   10:40:20  (  68.74,  19.15)   39.65                70
 06/22/2017   11:29:43   ( -68.30,-173.73) 06/22/2017   11:29:56  ( -68.30,-173.75)    1.12                13
 06/22/2017   12:20:27   (  68.16,  -6.25) 06/22/2017   12:19:23  (  68.18,  -6.25)    2.80                64
 06/25/2017   02:55:56   (  68.38, 134.61) 06/25/2017   02:56:55  (  68.40, 134.61)    1.76                59
 06/25/2017   03:46:37   ( -68.25, -57.90) 06/25/2017   03:46:26  ( -68.25, -57.94)    1.63                11
 06/25/2017   04:37:11   (  67.58, 110.24) 06/25/2017   04:36:01  (  67.67, 109.04)   51.91                70
 06/27/2017   19:12:50   (  68.35,-109.57) 06/27/2017   19:13:25  (  68.34,-109.59)    1.35                35
 06/27/2017   20:03:31   ( -68.21,  57.92) 06/27/2017   20:02:55  ( -68.24,  57.93)    3.34                36
 06/30/2017   10:39:10   ( -68.97,-161.93) 06/30/2017   10:40:20  ( -68.84,-160.73)   50.14                70
 06/30/2017   11:29:44   (  68.31,   6.25) 06/30/2017   11:29:54  (  68.33,   6.28)    2.12                10
 06/30/2017   12:20:25   ( -68.17, 173.75) 06/30/2017   12:19:25  ( -68.18, 173.74)    0.64                60