Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 12 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)
 12/27/2018   06:08:44   (  70.41,  84.66) 12/27/2018   06:07:32  (  70.47,  83.89)   29.38                72
 12/27/2018   06:58:18   ( -70.08,-108.19) 12/27/2018   06:58:08  ( -70.06,-108.15)    2.96                10
 12/27/2018   07:47:45   (  69.97,  59.31) 12/27/2018   07:48:52  (  69.95,  59.32)    2.66                67
 12/29/2018   22:25:18   (  70.14,-159.86) 12/29/2018   22:24:20  (  70.12,-159.79)    3.03                58
 12/29/2018   23:14:48   ( -70.03,   7.62) 12/29/2018   23:15:02  ( -70.02,   7.68)    2.45                14
 12/30/2018   00:04:27   (  69.26, 174.22) 12/30/2018   00:05:34  (  69.28, 176.07)   73.12                67
 01/01/2019   14:41:46   (  70.14, -43.98) 01/01/2019   14:41:14  (  70.14, -44.05)    2.90                32
 01/01/2019   15:31:17   ( -69.98, 123.43) 01/01/2019   15:31:55  ( -69.99, 123.50)    2.86                38
 01/04/2019   06:08:42   ( -70.57, -95.11) 01/04/2019   06:07:32  ( -70.63, -96.36)   46.71                70
 01/04/2019   06:58:16   (  70.08,  71.82) 01/04/2019   06:58:07  (  70.06,  71.84)    2.26                 9
 01/04/2019   07:47:46   ( -69.98,-120.69) 01/04/2019   07:48:49  ( -69.95,-120.68)    2.85                63
 01/06/2019   22:25:19   ( -70.13,  20.13) 01/06/2019   22:24:17  ( -70.13,  20.20)    2.95                62
 01/06/2019   23:14:46   (  70.02,-172.39) 01/06/2019   23:15:01  (  70.03,-172.34)    2.60                15
 01/07/2019   00:04:25   ( -69.42,  -5.57) 01/07/2019   00:05:34  ( -69.45,  -4.16)   55.24                69