Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 7 1.  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)
 07/01/2021   14:41:49   (  70.08, -44.03) 07/01/2021   14:40:53  (  70.08, -43.95)    2.80                56
 07/01/2021   15:31:17   ( -70.02, 123.52) 07/01/2021   15:31:34  ( -69.99, 123.50)    3.42                17
 07/01/2021   16:20:58   (  69.15, -70.02) 07/01/2021   16:22:05  (  69.18, -68.01)   79.55                67
 07/04/2021   06:58:18   (  70.05,  71.81) 07/04/2021   06:57:49  (  70.06,  71.84)    1.79                29
 07/04/2021   07:47:47   ( -69.99,-120.64) 07/04/2021   07:48:31  ( -69.97,-120.70)    3.32                44
 07/06/2021   22:25:18   ( -70.28,  20.38) 07/06/2021   22:24:05  ( -70.32,  19.90)   18.43                73
 07/06/2021   23:14:48   (  70.01,-172.36) 07/06/2021   23:14:45  (  69.99,-172.29)    3.49                 3
 07/07/2021   00:04:18   ( -69.90,  -4.88) 07/07/2021   00:05:27  ( -69.90,  -4.83)    1.96                69
 07/09/2021   14:41:51   ( -70.08, 135.97) 07/09/2021   14:40:58  ( -70.09, 136.02)    2.40                53
 07/09/2021   15:31:18   (  69.97, -56.54) 07/09/2021   15:31:42  (  69.98, -56.50)    1.83                24
 07/09/2021   16:21:02   ( -69.09, 109.91) 07/09/2021   16:22:09  ( -69.09, 112.10)   87.10                67
 07/12/2021   06:08:36   (  70.96,  85.53) 07/12/2021   06:07:29  (  71.01,  82.98)   92.66                67
 07/12/2021   06:58:20   ( -70.09,-108.13) 07/12/2021   06:57:55  ( -70.08,-108.20)    2.75                25
 07/12/2021   07:47:46   (  69.98,  59.35) 07/12/2021   07:48:38  (  69.96,  59.28)    2.95                52
 07/14/2021   22:25:19   (  70.14,-159.81) 07/14/2021   22:24:08  (  70.11,-159.80)    3.32                71
 07/14/2021   23:14:49   ( -70.04,   7.68) 07/14/2021   23:14:50  ( -70.01,   7.67)    3.26                 1
 07/15/2021   00:04:19   (  69.76, 174.93) 07/15/2021   00:05:31  (  69.74, 175.38)   17.29                72