Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 29.  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)
 12/30/2019   06:58:38   ( -70.16,-108.08) 12/30/2019   06:57:26  ( -70.14,-108.14)    3.33                72
 12/30/2019   07:48:06   (  70.00,  59.34) 12/30/2019   07:48:10  (  70.03,  59.34)    3.30                 4
 12/30/2019   08:37:37   ( -69.83,-133.26) 12/30/2019   08:38:50  ( -69.83,-133.05)    7.95                73
 01/01/2020   23:15:07   ( -70.06,   7.67) 01/01/2020   23:14:17  ( -70.07,   7.74)    2.81                50
 01/02/2020   00:04:34   (  69.95, 175.16) 01/02/2020   00:05:01  (  69.96, 175.21)    2.34                27
 01/02/2020   00:54:20   ( -68.97, -18.53) 01/02/2020   00:55:26  ( -68.97, -16.04)   99.38                66
 01/04/2020   14:41:51   (  70.94, -42.78) 01/04/2020   14:40:44  (  71.00, -45.29)   91.29                67
 01/04/2020   15:31:35   ( -70.07, 123.56) 01/04/2020   15:31:10  ( -70.06, 123.53)    1.92                25
 01/04/2020   16:21:02   (  69.96, -68.95) 01/04/2020   16:21:54  (  69.95, -69.00)    1.92                52
 01/07/2020   06:58:34   (  70.13,  71.89) 01/07/2020   06:57:21  (  70.15,  71.85)    3.13                73
 01/07/2020   07:48:04   ( -70.02,-120.62) 01/07/2020   07:48:03  ( -70.05,-120.67)    3.33                 1
 01/07/2020   08:37:32   (  69.85,  46.78) 01/07/2020   08:38:45  (  69.84,  46.95)    6.45                73
 01/09/2020   23:15:03   (  70.07,-172.31) 01/09/2020   23:14:13  (  70.09,-172.28)    2.75                50
 01/10/2020   00:04:33   ( -69.97,  -4.82) 01/10/2020   00:04:55  ( -69.99,  -4.80)    1.86                22