Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 3 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)
 03/19/2019   02:55:58   ( -68.40, -45.47) 03/19/2019   02:57:05  ( -68.38, -45.43)    2.27                67
 03/19/2019   03:46:42   (  68.26, 122.01) 03/19/2019   03:46:32  (  68.26, 122.08)    2.60                10
 03/19/2019   04:37:18   ( -67.87, -70.17) 03/19/2019   04:36:06  ( -67.94, -70.67)   22.52                72
 03/21/2019   19:12:49   ( -68.32,  70.41) 03/21/2019   19:13:35  ( -68.30,  70.35)    2.92                46
 03/21/2019   20:03:33   (  68.18,-122.11) 03/21/2019   20:03:02  (  68.18,-122.14)    1.47                31
 03/21/2019   20:53:56   ( -67.08,  46.54) 03/21/2019   20:52:49  ( -67.13,  44.30)   97.26                67
 03/24/2019   10:39:15   (  69.17,  17.72) 03/24/2019   10:40:23  (  69.04,  19.51)   72.55                68
 03/24/2019   11:29:42   ( -68.29,-173.78) 03/24/2019   11:30:05  ( -68.27,-173.80)    2.06                23
 03/24/2019   12:20:26   (  68.16,  -6.30) 03/24/2019   12:19:32  (  68.15,  -6.30)    1.19                54
 03/27/2019   02:55:54   (  68.40, 134.54) 03/27/2019   02:57:04  (  68.39, 134.59)    2.30                70
 03/27/2019   03:46:35   ( -68.27, -57.97) 03/27/2019   03:46:35  ( -68.24, -57.96)    2.61                 0
 03/27/2019   04:37:16   (  67.98, 109.70) 03/27/2019   04:36:04  (  68.01, 109.40)   12.77                72
 03/29/2019   19:12:46   (  68.33,-109.59) 03/29/2019   19:13:34  (  68.36,-109.58)    2.61                48
 03/29/2019   20:03:27   ( -68.19,  57.91) 03/29/2019   20:03:05  ( -68.21,  57.87)    2.34                22
 03/29/2019   20:53:54   (  67.15,-133.52) 03/29/2019   20:52:47  (  67.24,-135.58)   89.71                67