Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 12 8.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2020   23:15:13   (  70.14,-172.24) 12/10/2020   23:14:11  (  70.12,-172.30)    3.22                62
 12/11/2020   00:04:44   ( -69.97,  -4.83) 12/11/2020   00:04:52  ( -69.98,  -4.77)    2.57                 8
 12/11/2020   00:54:19   (  69.42, 162.06) 12/11/2020   00:55:28  (  69.44, 163.34)   50.00                69
 12/13/2020   15:31:42   (  70.07, -56.44) 12/13/2020   15:31:02  (  70.07, -56.45)    0.38                40
 12/13/2020   16:21:12   ( -69.97, 111.04) 12/13/2020   16:21:44  ( -69.99, 111.00)    2.62                32
 12/16/2020   06:58:32   ( -70.83,-107.10) 12/16/2020   06:57:24  ( -70.88,-109.26)   79.23                68
 12/16/2020   07:48:12   (  70.01,  59.34) 12/16/2020   07:47:54  (  70.03,  59.39)    3.29                18
 12/16/2020   08:37:41   ( -69.96,-133.09) 12/16/2020   08:38:36  ( -69.94,-133.16)    3.08                55
 12/18/2020   23:15:14   ( -70.10,   7.71) 12/18/2020   23:14:02  ( -70.10,   7.75)    1.53                72
 12/19/2020   00:04:41   (  69.99, 175.19) 12/19/2020   00:04:46  (  69.99, 175.23)    1.36                 5
 12/19/2020   00:54:13   ( -69.78, -17.46) 12/19/2020   00:55:25  ( -69.74, -17.08)   15.38                72
 12/21/2020   15:31:43   ( -70.08, 123.56) 12/21/2020   15:30:54  ( -70.06, 123.59)    2.40                49
 12/21/2020   16:21:10   (  69.96, -68.96) 12/21/2020   16:21:38  (  69.96, -68.94)    1.01                28