Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 2 16.  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)
 02/18/2020   02:55:58   ( -69.26, -46.60) 02/18/2020   02:57:06  ( -69.14, -44.69)   76.55                68
 02/18/2020   03:46:27   (  68.33, 121.96) 02/18/2020   03:46:46  (  68.31, 121.92)    2.72                19
 02/18/2020   04:37:08   ( -68.20, -70.55) 02/18/2020   04:36:16  ( -68.21, -70.57)    1.88                52
 02/20/2020   19:12:38   ( -68.45,  70.27) 02/20/2020   19:13:50  ( -68.44,  70.30)    1.55                72
 02/20/2020   20:03:22   (  68.32,-122.26) 02/20/2020   20:03:17  (  68.33,-122.20)    2.79                 5
 02/20/2020   20:54:02   ( -68.13,  45.30) 02/20/2020   20:52:49  ( -68.12,  45.19)    4.88                73
 02/23/2020   11:29:33   ( -68.39,-173.89) 02/23/2020   11:30:23  ( -68.41,-173.88)    1.62                50
 02/23/2020   12:20:17   (  68.27,  -6.42) 02/23/2020   12:19:50  (  68.29,  -6.38)    2.70                27
 02/23/2020   13:10:43   ( -67.32, 162.06) 02/23/2020   13:09:35  ( -67.35, 160.18)   80.85                68
 02/26/2020   02:56:04   (  69.38, 133.21) 02/26/2020   02:57:11  (  69.29, 135.46)   89.06                67
 02/26/2020   03:46:29   ( -68.39, -58.12) 02/26/2020   03:46:56  ( -68.36, -58.07)    3.16                27
 02/26/2020   04:37:12   (  68.21, 109.42) 02/26/2020   04:36:23  (  68.24, 109.43)    3.44                49
 02/28/2020   19:12:45   (  68.58,-109.92) 02/28/2020   19:13:57  (  68.52,-109.65)   13.10                72
 02/28/2020   20:03:24   ( -68.33,  57.72) 02/28/2020   20:03:29  ( -68.32,  57.74)    1.49                 5
 02/28/2020   20:54:08   (  68.21,-134.82) 02/28/2020   20:52:56  (  68.19,-134.77)    2.77                72