Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 1 21.  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)
 01/23/2020   06:58:26   (  70.43,  72.31) 01/23/2020   06:57:15  (  70.52,  71.31)   38.62                71
 01/23/2020   07:48:01   ( -70.05,-120.61) 01/23/2020   07:47:50  ( -70.06,-120.65)    2.09                11
 01/23/2020   08:37:28   (  69.94,  46.88) 01/23/2020   08:38:34  (  69.95,  46.82)    2.76                66
 01/25/2020   23:14:59   (  70.11,-172.27) 01/25/2020   23:13:59  (  70.11,-172.26)    0.56                60
 01/26/2020   00:04:29   ( -70.01,  -4.79) 01/26/2020   00:04:41  ( -70.01,  -4.80)    0.55                12
 01/26/2020   00:54:06   (  69.34, 161.95) 01/26/2020   00:55:14  (  69.32, 163.52)   61.71                68
 01/28/2020   15:31:28   (  70.07, -56.45) 01/28/2020   15:30:51  (  70.06, -56.42)    1.55                37
 01/28/2020   16:20:58   ( -69.96, 111.03) 01/28/2020   16:21:33  ( -69.96, 111.05)    0.73                35
 01/31/2020   06:58:20   ( -70.68,-107.32) 01/31/2020   06:57:11  ( -70.75,-109.03)   63.24                69
 01/31/2020   07:47:57   (  70.02,  59.36) 01/31/2020   07:47:43  (  70.02,  59.43)    2.74                14
 01/31/2020   08:37:27   ( -69.92,-133.15) 01/31/2020   08:38:25  ( -69.92,-133.10)    1.92                58
 02/02/2020   23:14:58   ( -70.14,   7.76) 02/02/2020   23:13:52  ( -70.13,   7.73)    1.68                66
 02/03/2020   00:04:25   (  70.02, 175.24) 02/03/2020   00:04:36  (  70.03, 175.19)    2.17                11
 02/03/2020   00:54:01   ( -69.59, -17.72) 02/03/2020   00:55:12  ( -69.61, -16.86)   33.06                71