Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 1 15.  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)
 01/15/2020   06:58:31   ( -70.34,-107.83) 01/15/2020   06:57:19  ( -70.45,-108.59)   30.88                72
 01/15/2020   07:48:02   (  70.02,  59.35) 01/15/2020   07:47:57  (  70.02,  59.38)    1.23                 5
 01/15/2020   08:37:32   ( -69.91,-133.17) 01/15/2020   08:38:39  ( -69.93,-133.16)    2.67                67
 01/17/2020   23:15:04   ( -70.09,   7.70) 01/17/2020   23:14:05  ( -70.08,   7.76)    3.07                59
 01/18/2020   00:04:31   (  69.99, 175.19) 01/18/2020   00:04:49  (  69.97, 175.24)    2.30                18
 01/18/2020   00:54:12   ( -69.27, -18.14) 01/18/2020   00:55:20  ( -69.29, -16.46)   66.37                68
 01/20/2020   15:31:32   ( -70.06, 123.54) 01/20/2020   15:30:57  ( -70.08, 123.54)    1.65                35
 01/20/2020   16:20:59   (  69.95, -68.98) 01/20/2020   16:21:41  (  69.97, -68.99)    2.68                42
 01/23/2020   06:58:25   (  70.46,  72.36) 01/23/2020   06:57:14  (  70.50,  71.34)   37.88                71
 01/23/2020   07:48:01   ( -70.03,-120.63) 01/23/2020   07:47:49  ( -70.03,-120.60)    1.05                12
 01/23/2020   08:37:28   (  69.91,  46.85) 01/23/2020   08:38:33  (  69.93,  46.86)    1.63                65
 01/25/2020   23:15:00   (  70.09,-172.30) 01/25/2020   23:13:59  (  70.09,-172.23)    2.64                61
 01/26/2020   00:04:30   ( -69.99,  -4.81) 01/26/2020   00:04:41  ( -69.98,  -4.76)    2.13                11
 01/26/2020   00:54:06   (  69.37, 162.00) 01/26/2020   00:55:15  (  69.35, 163.48)   58.03                69
 01/28/2020   15:31:28   (  70.10, -56.40) 01/28/2020   15:30:52  (  70.10, -56.47)    2.37                36
 01/28/2020   16:20:59   ( -69.95, 111.01) 01/28/2020   16:21:33  ( -69.94, 111.09)    3.09                34