Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 10 2.  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)
 10/02/2021   22:25:47   (  70.13,-159.87) 10/02/2021   22:24:48  (  70.10,-159.87)    2.59                59
 10/02/2021   23:15:17   ( -70.01,   7.60) 10/02/2021   23:15:30  ( -70.01,   7.60)    0.08                13
 10/03/2021   00:04:55   (  69.30, 174.28) 10/03/2021   00:06:03  (  69.31, 175.93)   64.72                68
 10/05/2021   14:42:18   (  70.07, -44.07) 10/05/2021   14:41:43  (  70.06, -44.03)    1.98                35
 10/05/2021   15:31:48   ( -69.96, 123.40) 10/05/2021   15:32:25  ( -69.96, 123.44)    1.65                37
 10/08/2021   06:09:14   ( -70.55, -95.14) 10/08/2021   06:08:03  ( -70.60, -96.41)   47.11                71
 10/08/2021   06:58:48   (  70.06,  71.80) 10/08/2021   06:58:39  (  70.07,  71.72)    2.99                 9
 10/08/2021   07:48:18   ( -69.95,-120.73) 10/08/2021   07:49:20  ( -69.92,-120.72)    3.49                62
 10/10/2021   22:25:51   ( -70.15,  20.16) 10/10/2021   22:24:50  ( -70.14,  20.09)    3.06                61
 10/10/2021   23:15:19   (  69.99,-172.42) 10/10/2021   23:15:33  (  69.99,-172.37)    2.32                14
 10/11/2021   00:04:57   ( -69.44,  -5.54) 10/11/2021   00:06:07  ( -69.46,  -4.27)   49.70                70
 10/13/2021   14:42:21   ( -70.08, 135.93) 10/13/2021   14:41:44  ( -70.10, 135.91)    2.83                37
 10/13/2021   15:31:48   (  69.97, -56.57) 10/13/2021   15:32:27  (  69.95, -56.54)    2.35                39