Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 8 7.  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)
 08/07/2021   22:25:33   ( -70.11,  20.13) 08/07/2021   22:24:23  ( -70.13,  20.15)    1.58                70
 08/07/2021   23:15:00   (  70.01,-172.37) 08/07/2021   23:15:07  (  70.00,-172.35)    1.45                 7
 08/08/2021   00:04:33   ( -69.73,  -5.12) 08/08/2021   00:05:45  ( -69.71,  -4.60)   20.30                72
 08/10/2021   14:42:04   ( -70.06, 135.94) 08/10/2021   14:41:19  ( -70.08, 135.98)    2.25                45
 08/10/2021   15:31:31   (  69.96, -56.57) 08/10/2021   15:32:03  (  69.95, -56.52)    1.79                32
 08/13/2021   06:08:54   (  70.72,  85.15) 08/13/2021   06:07:45  (  70.75,  83.36)   65.60                69
 08/13/2021   06:58:35   ( -70.01,-108.25) 08/13/2021   06:58:15  ( -70.03,-108.18)    3.60                20
 08/13/2021   07:48:02   (  69.90,  59.24) 08/13/2021   07:48:59  (  69.91,  59.31)    3.17                57
 08/15/2021   22:25:34   (  70.11,-159.87) 08/15/2021   22:24:29  (  70.13,-159.88)    2.66                65
 08/15/2021   23:15:04   ( -70.01,   7.63) 08/15/2021   23:15:10  ( -69.99,   7.65)    2.45                 6
 08/16/2021   00:04:38   (  69.51, 174.58) 08/16/2021   00:05:48  (  69.55, 175.61)   40.34                70
 08/18/2021   14:42:04   (  70.10, -44.00) 08/18/2021   14:41:25  (  70.09, -44.06)    2.35                39
 08/18/2021   15:31:35   ( -69.95, 123.42) 08/18/2021   15:32:06  ( -69.95, 123.48)    2.39                31