Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2020 2 15.  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)
 02/15/2020   11:29:32   (  68.37,   6.15) 02/15/2020   11:30:13  (  68.37,   6.13)    0.71                41
 02/15/2020   12:20:13   ( -68.24, 173.64) 02/15/2020   12:19:44  ( -68.21, 173.57)    3.61                29
 02/18/2020   02:55:57   ( -69.24, -46.56) 02/18/2020   02:57:05  ( -69.17, -44.65)   75.74                68
 02/18/2020   03:46:27   (  68.36, 121.92) 02/18/2020   03:46:45  (  68.34, 121.95)    3.05                18
 02/18/2020   04:37:08   ( -68.23, -70.58) 02/18/2020   04:36:15  ( -68.24, -70.54)    2.23                53
 02/20/2020   19:12:39   ( -68.48,  70.23) 02/20/2020   19:13:50  ( -68.47,  70.33)    4.29                71
 02/20/2020   20:03:22   (  68.30,-122.23) 02/20/2020   20:03:18  (  68.29,-122.24)    0.81                 4
 02/20/2020   20:54:02   ( -68.11,  45.33) 02/20/2020   20:52:49  ( -68.14,  45.21)    6.03                73
 02/23/2020   11:29:34   ( -68.42,-173.93) 02/23/2020   11:30:23  ( -68.43,-173.86)    2.79                49
 02/23/2020   12:20:17   (  68.24,  -6.39) 02/23/2020   12:19:51  (  68.25,  -6.43)    1.63                26
 02/23/2020   13:10:43   ( -67.29, 162.09) 02/23/2020   13:09:35  ( -67.37, 160.20)   81.53                68
 02/26/2020   02:56:05   (  69.41, 133.16) 02/26/2020   02:57:11  (  69.30, 135.48)   91.62                66
 02/26/2020   03:46:29   ( -68.36, -58.09) 02/26/2020   03:46:56  ( -68.38, -58.05)    2.26                27
 02/26/2020   04:37:13   (  68.24, 109.38) 02/26/2020   04:36:23  (  68.25, 109.44)    3.14                50
 02/28/2020   19:12:45   (  68.61,-109.97) 02/28/2020   19:13:56  (  68.53,-109.64)   16.24                71
 02/28/2020   20:03:23   ( -68.31,  57.75) 02/28/2020   20:03:28  ( -68.33,  57.75)    2.35                 5
 02/28/2020   20:54:07   (  68.19,-134.79) 02/28/2020   20:52:55  (  68.20,-134.75)    2.09                72