Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 3 13.  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)
 03/13/2019   19:12:57   (  68.35,-109.65) 03/13/2019   19:13:32  (  68.33,-109.60)    2.74                35
 03/13/2019   20:03:37   ( -68.17,  57.89) 03/13/2019   20:03:03  ( -68.18,  57.85)    1.93                34
 03/16/2019   10:39:17   ( -69.04,-162.11) 03/16/2019   10:40:26  ( -68.93,-160.63)   60.44                69
 03/16/2019   11:29:49   (  68.27,   6.23) 03/16/2019   11:30:03  (  68.25,   6.18)    2.26                14
 03/16/2019   12:20:30   ( -68.14, 173.71) 03/16/2019   12:19:33  ( -68.16, 173.70)    2.13                57
 03/19/2019   02:55:57   ( -68.37, -45.44) 03/19/2019   02:57:05  ( -68.36, -45.46)    2.34                68
 03/19/2019   03:46:41   (  68.24, 122.04) 03/19/2019   03:46:32  (  68.23, 122.03)    1.43                 9
 03/19/2019   04:37:18   ( -67.90, -70.21) 03/19/2019   04:36:05  ( -67.97, -70.64)   19.67                73
 03/21/2019   19:12:50   ( -68.35,  70.37) 03/21/2019   19:13:35  ( -68.33,  70.38)    2.45                45
 03/21/2019   20:03:34   (  68.22,-122.16) 03/21/2019   20:03:02  (  68.20,-122.12)    2.72                32
 03/21/2019   20:53:56   ( -67.07,  46.57) 03/21/2019   20:52:50  ( -67.10,  44.26)   99.84                66
 03/24/2019   10:39:15   (  69.16,  17.74) 03/24/2019   10:40:23  (  69.05,  19.53)   72.02                68
 03/24/2019   11:29:42   ( -68.27,-173.75) 03/24/2019   11:30:05  ( -68.30,-173.78)    2.60                23
 03/24/2019   12:20:26   (  68.15,  -6.29) 03/24/2019   12:19:32  (  68.17,  -6.29)    1.93                54