Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 12 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)
 12/18/2017   22:25:34   ( -70.36,  20.42) 12/18/2017   22:24:22  ( -70.42,  19.76)   25.73                72
 12/18/2017   23:15:05   (  70.03,-172.40) 12/18/2017   23:15:01  (  70.06,-172.36)    2.64                 4
 12/19/2017   00:04:34   ( -69.98,  -4.84) 12/19/2017   00:05:43  ( -69.96,  -4.89)    3.08                69
 12/21/2017   14:42:08   ( -70.13, 135.96) 12/21/2017   14:41:10  ( -70.11, 136.03)    3.29                58
 12/21/2017   15:31:35   (  70.02, -56.54) 12/21/2017   15:31:54  (  70.00, -56.51)    2.30                19
 12/21/2017   16:21:16   ( -69.31, 110.12) 12/21/2017   16:22:24  ( -69.27, 111.88)   69.58                68
 12/24/2017   06:58:37   ( -70.11,-108.18) 12/24/2017   06:58:03  ( -70.11,-108.20)    0.85                34
 12/24/2017   07:48:04   (  70.00,  59.31) 12/24/2017   07:48:47  (  70.01,  59.26)    1.90                43
 12/26/2017   22:25:32   (  70.47,-159.42) 12/26/2017   22:24:21  (  70.53,-160.41)   37.35                71
 12/26/2017   23:15:08   ( -70.03,   7.58) 12/26/2017   23:14:56  ( -70.06,   7.65)    3.36                12
 12/27/2017   00:04:34   (  69.98, 175.15) 12/27/2017   00:05:40  (  69.96, 175.11)    2.86                66
 12/29/2017   14:42:07   (  70.17, -43.99) 12/29/2017   14:41:08  (  70.17, -44.07)    3.04                59
 12/29/2017   15:31:38   ( -70.01, 123.42) 12/29/2017   15:31:49  ( -70.01, 123.50)    2.75                11
 12/29/2017   16:21:14   (  69.40, -69.77) 12/29/2017   16:22:23  (  69.38, -68.27)   58.53                69