Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 8 26.  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)
 08/29/2021   06:09:00   (  70.56,  84.91) 08/29/2021   06:07:50  (  70.61,  83.57)   50.01                70
 08/29/2021   06:58:37   ( -70.07,-108.17) 08/29/2021   06:58:23  ( -70.05,-108.23)    2.75                14
 08/29/2021   07:48:05   (  69.91,  59.25) 08/29/2021   07:49:07  (  69.93,  59.26)    2.86                62
 08/31/2021   22:25:38   (  70.09,-159.89) 08/31/2021   22:24:37  (  70.12,-159.87)    2.66                61
 08/31/2021   23:15:08   ( -69.99,   7.59) 08/31/2021   23:15:18  ( -69.97,   7.66)    3.08                10
 09/01/2021   00:04:44   (  69.38, 174.41) 09/01/2021   00:05:53  (  69.38, 175.85)   56.33                69
 09/03/2021   14:42:08   (  70.06, -44.06) 09/03/2021   14:41:32  (  70.04, -43.99)    3.23                36
 09/03/2021   15:31:38   ( -69.95, 123.43) 09/03/2021   15:32:14  ( -69.95, 123.47)    1.88                36
 09/06/2021   06:09:04   ( -70.51, -95.16) 09/06/2021   06:07:53  ( -70.60, -96.41)   47.30                71
 09/06/2021   06:58:38   (  70.02,  71.77) 09/06/2021   06:58:28  (  70.02,  71.81)    1.65                10
 09/06/2021   07:48:08   ( -69.92,-120.74) 09/06/2021   07:49:10  ( -69.92,-120.72)    0.81                62
 09/08/2021   22:25:40   ( -70.09,  20.11) 09/08/2021   22:24:39  ( -70.11,  20.14)    2.24                61
 09/08/2021   23:15:07   (  69.97,-172.41) 09/08/2021   23:15:23  (  70.00,-172.39)    3.32                16
 09/09/2021   00:04:46   ( -69.38,  -5.59) 09/09/2021   00:05:55  ( -69.37,  -4.15)   56.61                69