Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 6 17.  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)
 06/17/2020   22:24:52   ( -70.94,  21.38) 06/17/2020   22:23:45  ( -71.00,  18.92)   89.15                67
 06/17/2020   23:14:33   (  70.08,-172.26) 06/17/2020   23:14:14  (  70.10,-172.32)    2.67                19
 06/18/2020   00:04:03   ( -69.97,  -4.79) 06/18/2020   00:04:55  ( -69.96,  -4.79)    1.09                52
 06/20/2020   14:41:37   ( -70.16, 136.08) 06/20/2020   14:40:24  ( -70.20, 136.00)    5.08                73
 06/20/2020   15:31:03   (  70.06, -56.42) 06/20/2020   15:31:06  (  70.03, -56.43)    3.22                 3
 06/20/2020   16:20:34   ( -69.89, 110.98) 06/20/2020   16:21:47  ( -69.89, 111.10)    4.54                73
 06/23/2020   06:58:07   ( -70.13,-108.08) 06/23/2020   06:57:16  ( -70.12,-108.11)    1.76                51
 06/23/2020   07:47:34   (  70.03,  59.42) 06/23/2020   07:48:00  (  70.01,  59.37)    2.65                26
 06/23/2020   08:37:20   ( -69.04,-134.28) 06/23/2020   08:38:26  ( -69.07,-131.95)   92.72                66
 06/25/2020   23:14:38   ( -70.11,   7.76) 06/25/2020   23:14:10  ( -70.11,   7.69)    2.74                28
 06/26/2020   00:04:06   (  69.94, 175.18) 06/26/2020   00:04:53  (  69.94, 175.25)    2.84                47
 06/28/2020   14:41:37   (  70.29, -43.73) 06/28/2020   14:40:25  (  70.34, -44.22)   19.31                72
 06/28/2020   15:31:10   ( -70.02, 123.52) 06/28/2020   15:31:03  ( -70.04, 123.57)    2.83                 7
 06/28/2020   16:20:37   (  69.91, -68.99) 06/28/2020   16:21:47  (  69.93, -68.95)    2.64                70