Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 6 25.  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)
 06/26/2018   06:07:57   ( -70.20, -95.59) 06/26/2018   06:06:54  ( -70.23, -95.61)    2.97                63
 06/26/2018   06:57:24   (  70.10,  71.91) 06/26/2018   06:57:38  (  70.10,  71.90)    0.59                14
 06/26/2018   07:47:02   ( -69.55,-121.22) 06/26/2018   07:48:11  ( -69.55,-119.96)   48.88                69
 06/28/2018   22:24:27   ( -70.19,  20.27) 06/28/2018   22:23:47  ( -70.19,  20.23)    1.44                40
 06/28/2018   23:13:54   (  70.08,-172.24) 06/28/2018   23:14:31  (  70.06,-172.27)    2.66                37
 07/01/2018   13:51:19   (  70.77, -30.63) 07/01/2018   13:50:10  (  70.81, -32.31)   61.49                69
 07/01/2018   14:40:58   ( -70.17, 136.12) 07/01/2018   14:40:41  ( -70.15, 136.06)    2.86                17
 07/01/2018   15:30:26   (  70.00, -56.47) 07/01/2018   15:31:25  (  70.03, -56.44)    2.59                59
 07/04/2018   06:08:00   (  70.19,  84.40) 07/04/2018   06:06:53  (  70.20,  84.45)    2.05                67
 07/04/2018   06:57:30   ( -70.09,-108.12) 07/04/2018   06:57:35  ( -70.11,-108.10)    2.45                 5
 07/04/2018   07:47:03   (  69.65,  58.91) 07/04/2018   07:48:13  (  69.67,  59.87)   36.96                70
 07/06/2018   22:24:31   (  70.16,-159.76) 07/06/2018   22:23:47  (  70.16,-159.72)    1.57                44
 07/06/2018   23:14:01   ( -70.06,   7.73) 07/06/2018   23:14:29  ( -70.08,   7.73)    1.33                28
 07/09/2018   13:51:20   ( -71.06, 149.83) 07/09/2018   13:50:13  ( -71.08, 147.26)   92.76                67
 07/09/2018   14:41:01   (  70.13, -43.93) 07/09/2018   14:40:40  (  70.13, -43.90)    1.19                21
 07/09/2018   15:30:31   ( -70.03, 123.56) 07/09/2018   15:31:22  ( -70.04, 123.56)    0.85                51