Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 7 29.  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)
 07/30/2021   22:25:28   (  70.10,-159.87) 07/30/2021   22:24:19  (  70.12,-159.83)    2.13                69
 07/30/2021   23:14:57   ( -70.05,   7.68) 07/30/2021   23:15:01  ( -70.03,   7.61)    3.28                 4
 07/31/2021   00:04:29   (  69.67, 174.80) 07/31/2021   00:05:40  (  69.64, 175.50)   27.34                71
 08/02/2021   14:41:59   (  70.06, -44.05) 08/02/2021   14:41:15  (  70.07, -43.99)    2.38                44
 08/02/2021   15:31:29   ( -69.96, 123.43) 08/02/2021   15:31:57  ( -69.98, 123.45)    3.21                28
 08/05/2021   06:08:49   ( -70.89, -94.59) 08/05/2021   06:07:42  ( -70.93, -96.91)   84.69                67
 08/05/2021   06:58:29   (  70.07,  71.84) 08/05/2021   06:58:12  (  70.08,  71.76)    3.05                17
 08/05/2021   07:48:00   ( -69.91,-120.75) 08/05/2021   07:48:53  ( -69.94,-120.71)    2.93                53
 08/07/2021   22:25:33   ( -70.13,  20.16) 08/07/2021   22:24:24  ( -70.15,  20.10)    3.01                69
 08/07/2021   23:15:00   (  70.02,-172.36) 08/07/2021   23:15:08  (  70.03,-172.41)    2.67                 8
 08/08/2021   00:04:34   ( -69.70,  -5.16) 08/08/2021   00:05:46  ( -69.73,  -4.64)   20.55                72
 08/10/2021   14:42:03   ( -70.08, 135.97) 08/10/2021   14:41:19  ( -70.11, 135.94)    3.32                44
 08/10/2021   15:31:30   (  69.96, -56.56) 08/10/2021   15:32:02  (  69.94, -56.50)    3.10                32