Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 30.  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)
 01/01/2020   23:15:07   ( -70.06,   7.66) 01/01/2020   23:14:17  ( -70.08,   7.73)    3.69                50
 01/02/2020   00:04:34   (  69.95, 175.15) 01/02/2020   00:05:01  (  69.97, 175.21)    3.18                27
 01/04/2020   14:41:51   (  70.93, -42.79) 01/04/2020   14:40:44  (  71.00, -45.29)   91.03                67
 01/04/2020   15:31:35   ( -70.06, 123.55) 01/04/2020   15:31:10  ( -70.06, 123.53)    0.84                25
 01/04/2020   16:21:02   (  69.95, -68.97) 01/04/2020   16:21:54  (  69.96, -69.00)    1.71                52
 01/07/2020   06:58:33   (  70.17,  71.95) 01/07/2020   06:57:21  (  70.16,  71.85)    3.96                72
 01/07/2020   07:48:04   ( -70.01,-120.64) 01/07/2020   07:48:02  ( -70.00,-120.60)    1.78                 2
 01/07/2020   08:37:32   (  69.84,  46.76) 01/07/2020   08:38:44  (  69.79,  47.02)   11.11                72
 01/09/2020   23:15:02   (  70.11,-172.26) 01/09/2020   23:14:13  (  70.10,-172.29)    1.55                49
 01/10/2020   00:04:32   ( -70.01,  -4.76) 01/10/2020   00:04:55  ( -70.00,  -4.82)    2.33                23
 01/12/2020   15:31:30   (  70.04, -56.46) 01/12/2020   15:31:04  (  70.05, -56.43)    1.27                26
 01/12/2020   16:21:00   ( -69.95, 111.03) 01/12/2020   16:21:46  ( -69.94, 111.05)    0.94                46