Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 2 11.  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)
 02/12/2021   23:14:58   (  70.09,-172.31) 02/12/2021   23:14:18  (  70.10,-172.37)    2.35                40
 02/13/2021   00:04:28   ( -69.98,  -4.84) 02/13/2021   00:04:59  ( -69.95,  -4.83)    2.71                31
 02/15/2021   14:41:48   ( -70.76, 136.90) 02/15/2021   14:40:39  ( -70.78, 135.01)   69.46                69
 02/15/2021   15:31:26   (  70.06, -56.49) 02/15/2021   15:31:11  (  70.05, -56.52)    1.45                15
 02/15/2021   16:20:56   ( -69.94, 110.99) 02/15/2021   16:21:53  ( -69.95, 110.95)    1.89                57
 02/18/2021   06:58:28   ( -70.12,-108.16) 02/18/2021   06:57:21  ( -70.10,-108.14)    1.86                67
 02/18/2021   07:47:55   (  70.01,  59.33) 02/18/2021   07:48:05  (  70.00,  59.33)    1.75                10
 02/18/2021   08:37:30   ( -69.63,-133.57) 02/18/2021   08:38:41  ( -69.58,-132.73)   32.71                71
 02/20/2021   23:14:57   ( -70.07,   7.65) 02/20/2021   23:14:15  ( -70.05,   7.71)    3.24                42
 02/21/2021   00:04:24   (  69.96, 175.14) 02/21/2021   00:04:59  (  69.95, 175.18)    2.40                35
 02/23/2021   14:41:47   (  70.62, -43.30) 02/23/2021   14:40:38  (  70.68, -44.83)   56.70                69
 02/23/2021   15:31:25   ( -70.08, 123.54) 02/23/2021   15:31:10  ( -70.05, 123.48)    3.45                15
 02/23/2021   16:20:53   (  69.91, -69.05) 02/23/2021   16:21:53  (  69.90, -68.97)    3.23                60