Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 11 22.  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)
 11/22/2018   14:41:51   ( -70.13, 136.00) 11/22/2018   14:41:17  ( -70.11, 136.05)    2.34                34
 11/22/2018   15:31:18   (  70.02, -56.50) 11/22/2018   15:32:02  (  70.04, -56.54)    2.21                44
 11/25/2018   06:08:47   (  70.40,  84.65) 11/25/2018   06:07:35  (  70.45,  83.97)   25.76                72
 11/25/2018   06:58:21   ( -70.07,-108.19) 11/25/2018   06:58:12  ( -70.10,-108.17)    2.89                 9
 11/25/2018   07:47:48   (  69.97,  59.30) 11/25/2018   07:48:56  (  69.98,  59.32)    1.25                68
 11/27/2018   22:25:20   (  70.18,-159.79) 11/27/2018   22:24:25  (  70.18,-159.84)    1.84                55
 11/27/2018   23:14:50   ( -70.07,   7.69) 11/27/2018   23:15:07  ( -70.09,   7.62)    3.03                17
 11/28/2018   00:04:30   (  69.25, 174.21) 11/28/2018   00:05:37  (  69.22, 176.18)   78.07                67
 11/30/2018   14:41:50   (  70.12, -44.00) 11/30/2018   14:41:19  (  70.12, -43.98)    0.64                31
 11/30/2018   15:31:20   ( -70.02, 123.49) 11/30/2018   15:32:01  ( -70.02, 123.48)    0.95                41
 12/03/2018   06:08:47   ( -70.44, -95.29) 12/03/2018   06:07:35  ( -70.54, -96.18)   34.61                72
 12/03/2018   06:58:19   (  70.06,  71.80) 12/03/2018   06:58:12  (  70.06,  71.87)    2.73                 7
 12/03/2018   07:47:49   ( -69.96,-120.71) 12/03/2018   07:48:54  ( -69.96,-120.66)    2.03                65
 12/05/2018   22:25:21   ( -70.17,  20.19) 12/05/2018   22:24:23  ( -70.16,  20.17)    0.56                58
 12/05/2018   23:14:48   (  70.05,-172.33) 12/05/2018   23:15:07  (  70.06,-172.36)    1.58                19