Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 8 20.  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)
 08/21/2018   06:08:24   (  70.20,  84.40) 08/21/2018   06:07:14  (  70.19,  84.42)    1.04                70
 08/21/2018   06:57:54   ( -70.08,-108.14) 08/21/2018   06:57:56  ( -70.09,-108.11)    1.79                 2
 08/21/2018   07:47:25   (  69.76,  59.06) 08/21/2018   07:48:36  (  69.77,  59.68)   23.99                71
 08/23/2018   22:24:55   (  70.16,-159.78) 08/23/2018   22:24:10  (  70.15,-159.74)    1.83                45
 08/23/2018   23:14:24   ( -70.05,   7.69) 08/23/2018   23:14:51  ( -70.05,   7.73)    1.57                27
 08/26/2018   13:51:44   ( -70.98, 149.69) 08/26/2018   13:50:37  ( -71.04, 147.27)   87.74                67
 08/26/2018   14:41:25   (  70.11, -43.96) 08/26/2018   14:41:05  (  70.10, -43.91)    2.43                20
 08/26/2018   15:30:55   ( -70.01, 123.52) 08/26/2018   15:31:47  ( -70.00, 123.57)    2.32                52
 08/29/2018   06:08:28   ( -70.23, -95.56) 08/29/2018   06:07:18  ( -70.21, -95.62)    3.04                70
 08/29/2018   06:57:56   (  70.07,  71.85) 08/29/2018   06:58:01  (  70.06,  71.93)    2.92                 5
 08/29/2018   07:47:29   ( -69.80,-120.89) 08/29/2018   07:48:40  ( -69.79,-120.35)   20.69                71
 08/31/2018   22:24:59   ( -70.19,  20.25) 08/31/2018   22:24:14  ( -70.17,  20.22)    2.43                45
 08/31/2018   23:14:26   (  70.08,-172.26) 08/31/2018   23:14:58  (  70.07,-172.33)    2.50                32