Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 7 4.  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)
 07/04/2021   06:58:18   (  70.05,  71.82) 07/04/2021   06:57:49  (  70.06,  71.85)    1.22                29
 07/04/2021   07:47:47   ( -69.99,-120.64) 07/04/2021   07:48:31  ( -69.97,-120.70)    3.35                44
 07/06/2021   22:25:18   ( -70.28,  20.38) 07/06/2021   22:24:05  ( -70.32,  19.90)   18.60                73
 07/06/2021   23:14:48   (  70.02,-172.36) 07/06/2021   23:14:46  (  70.04,-172.37)    3.07                 2
 07/07/2021   00:04:18   ( -69.90,  -4.88) 07/07/2021   00:05:27  ( -69.90,  -4.83)    1.79                69
 07/09/2021   14:41:51   ( -70.08, 135.97) 07/09/2021   14:40:58  ( -70.09, 136.01)    2.27                53
 07/09/2021   15:31:18   (  69.97, -56.53) 07/09/2021   15:31:42  (  69.98, -56.50)    1.25                24
 07/09/2021   16:21:02   ( -69.09, 109.91) 07/09/2021   16:22:09  ( -69.09, 112.10)   86.81                67
 07/12/2021   06:08:35   (  70.96,  85.54) 07/12/2021   06:07:28  (  71.01,  82.98)   93.05                67
 07/12/2021   06:58:19   ( -70.09,-108.13) 07/12/2021   06:57:54  ( -70.08,-108.20)    3.12                25
 07/12/2021   07:47:47   (  69.93,  59.29) 07/12/2021   07:48:37  (  69.91,  59.36)    3.27                50
 07/14/2021   22:25:20   (  70.09,-159.87) 07/14/2021   22:24:08  (  70.11,-159.80)    3.50                72
 07/14/2021   23:14:49   ( -70.05,   7.69) 07/14/2021   23:14:50  ( -70.02,   7.66)    3.35                 1
 07/15/2021   00:04:19   (  69.77, 174.95) 07/15/2021   00:05:31  (  69.74, 175.38)   16.75                72
 07/17/2021   14:41:49   (  70.09, -43.99) 07/17/2021   14:41:05  (  70.11, -44.03)    1.91                44
 07/17/2021   15:31:19   ( -69.99, 123.50) 07/17/2021   15:31:47  ( -70.01, 123.44)    2.85                28