Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 1 16.  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)
 01/17/2020   23:15:04   ( -70.09,   7.69) 01/17/2020   23:14:05  ( -70.08,   7.76)    2.63                59
 01/18/2020   00:04:31   (  69.98, 175.18) 01/18/2020   00:04:49  (  69.97, 175.23)    1.89                18
 01/18/2020   00:54:12   ( -69.27, -18.15) 01/18/2020   00:55:20  ( -69.30, -16.46)   66.58                68
 01/20/2020   15:31:33   ( -70.05, 123.52) 01/20/2020   15:30:58  ( -70.08, 123.53)    3.18                35
 01/20/2020   16:21:00   (  69.94, -68.99) 01/20/2020   16:21:41  (  69.92, -68.92)    3.35                41
 01/23/2020   06:58:25   (  70.45,  72.34) 01/23/2020   06:57:14  (  70.50,  71.34)   37.77                71
 01/23/2020   07:48:01   ( -70.02,-120.65) 01/23/2020   07:47:49  ( -70.03,-120.61)    2.21                12
 01/23/2020   08:37:28   (  69.90,  46.84) 01/23/2020   08:38:33  (  69.93,  46.85)    3.17                65
 01/25/2020   23:14:59   (  70.13,-172.24) 01/25/2020   23:14:00  (  70.14,-172.32)    3.25                59
 01/26/2020   00:04:30   ( -69.98,  -4.82) 01/26/2020   00:04:41  ( -69.99,  -4.76)    2.62                11
 01/26/2020   00:54:06   (  69.36, 161.98) 01/26/2020   00:55:15  (  69.36, 163.47)   58.39                69
 01/28/2020   15:31:28   (  70.08, -56.43) 01/28/2020   15:30:52  (  70.10, -56.47)    2.73                36
 01/28/2020   16:20:58   ( -69.99, 111.07) 01/28/2020   16:21:34  ( -70.00, 111.00)    2.83                36