Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 7 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)
 07/17/2019   03:47:09   ( -68.22, -58.00) 07/17/2019   03:46:18  ( -68.23, -57.95)    2.50                51
 07/19/2019   18:22:39   ( -68.43,  82.86) 07/19/2019   18:23:51  ( -68.41,  82.87)    2.26                72
 07/19/2019   19:13:23   (  68.30,-109.65) 07/19/2019   19:13:18  (  68.29,-109.63)    1.11                 5
 07/19/2019   20:04:02   ( -68.06,  57.97) 07/19/2019   20:02:50  ( -68.08,  57.76)    9.03                72
 07/22/2019   10:39:33   ( -68.39,-161.30) 07/22/2019   10:40:20  ( -68.39,-161.28)    1.02                47
 07/22/2019   11:30:17   (  68.25,   6.17) 07/22/2019   11:29:47  (  68.27,   6.22)    2.50                30
 07/22/2019   12:20:41   ( -67.21, 174.78) 07/22/2019   12:19:34  ( -67.22, 172.66)   91.32                67
 07/25/2019   02:06:01   (  69.23, 146.01) 07/25/2019   02:07:09  (  69.08, 147.83)   73.49                68
 07/25/2019   02:56:28   ( -68.34, -45.47) 07/25/2019   02:56:51  ( -68.32, -45.49)    2.12                23
 07/25/2019   03:47:12   (  68.21, 122.00) 07/25/2019   03:46:18  (  68.20, 122.01)    1.57                54
 07/27/2019   18:22:42   (  68.44, -97.14) 07/27/2019   18:23:51  (  68.41, -97.14)    2.56                69
 07/27/2019   19:13:23   ( -68.30,  70.35) 07/27/2019   19:13:21  ( -68.32,  70.38)    3.01                 2
 07/27/2019   20:04:03   (  67.95,-121.91) 07/27/2019   20:02:51  (  68.03,-122.32)   18.91                72
 07/30/2019   10:39:37   (  68.40,  18.68) 07/30/2019   10:40:22  (  68.36,  18.68)    3.53                45
 07/30/2019   11:30:18   ( -68.25,-173.82) 07/30/2019   11:29:52  ( -68.27,-173.80)    2.55                26