Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 7 13.  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)
 07/14/2018   22:24:35   ( -70.20,  20.28) 07/14/2018   22:23:44  ( -70.21,  20.23)    2.15                51
 07/14/2018   23:14:02   (  70.10,-172.22) 07/14/2018   23:14:28  (  70.08,-172.27)    2.31                26
 07/15/2018   00:03:48   ( -69.10,  -5.94) 07/15/2018   00:04:54  ( -69.16,  -3.59)   92.98                66
 07/17/2018   14:41:06   ( -70.16, 136.10) 07/17/2018   14:40:38  ( -70.18, 136.06)    3.01                28
 07/17/2018   15:30:33   (  70.05, -56.40) 07/17/2018   15:31:22  (  70.06, -56.45)    2.03                49
 07/20/2018   06:08:05   (  70.33,  84.60) 07/20/2018   06:06:53  (  70.40,  84.17)   17.66                72
 07/20/2018   06:57:37   ( -70.11,-108.08) 07/20/2018   06:57:31  ( -70.10,-108.04)    2.24                 6
 07/20/2018   07:47:04   (  70.00,  59.41) 07/20/2018   07:48:15  (  69.98,  59.44)    2.83                71
 07/22/2018   22:24:37   (  70.17,-159.75) 07/22/2018   22:23:42  (  70.16,-159.69)    2.67                55
 07/22/2018   23:14:07   ( -70.06,   7.73) 07/22/2018   23:14:24  ( -70.07,   7.78)    1.86                17
 07/23/2018   00:03:48   (  69.18, 174.17) 07/23/2018   00:04:54  (  69.21, 176.34)   85.67                66
 07/25/2018   14:41:07   (  70.17, -43.87) 07/25/2018   14:40:36  (  70.14, -43.87)    3.12                31
 07/25/2018   15:30:37   ( -70.07, 123.62) 07/25/2018   15:31:18  ( -70.04, 123.59)    2.91                41