Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 8 13.  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)
 08/13/2021   06:08:54   (  70.71,  85.14) 08/13/2021   06:07:45  (  70.76,  83.36)   65.68                69
 08/13/2021   06:58:34   ( -70.05,-108.19) 08/13/2021   06:58:15  ( -70.05,-108.20)    0.77                19
 08/13/2021   07:48:01   (  69.95,  59.30) 08/13/2021   07:48:59  (  69.92,  59.30)    3.54                58
 08/15/2021   22:25:34   (  70.10,-159.88) 08/15/2021   22:24:28  (  70.09,-159.81)    2.92                66
 08/15/2021   23:15:04   ( -70.00,   7.61) 08/15/2021   23:15:10  ( -70.01,   7.63)    1.28                 6
 08/16/2021   00:04:37   (  69.56, 174.65) 08/16/2021   00:05:47  (  69.51, 175.67)   40.42                70
 08/18/2021   14:42:04   (  70.09, -44.01) 08/18/2021   14:41:25  (  70.10, -44.07)    2.70                39
 08/18/2021   15:31:34   ( -69.99, 123.48) 08/18/2021   15:32:06  ( -69.97, 123.46)    2.93                32
 08/21/2021   06:08:57   ( -70.74, -94.82) 08/21/2021   06:07:48  ( -70.76, -96.66)   67.53                69
 08/21/2021   06:58:35   (  70.03,  71.77) 08/21/2021   06:58:20  (  70.02,  71.83)    2.15                15
 08/21/2021   07:48:05   ( -69.93,-120.73) 08/21/2021   07:49:02  ( -69.93,-120.72)    0.58                57
 08/23/2021   22:25:38   ( -70.13,  20.15) 08/23/2021   22:24:32  ( -70.10,  20.16)    2.79                66
 08/23/2021   23:15:05   (  70.01,-172.37) 08/23/2021   23:15:16  (  69.99,-172.36)    2.45                11
 08/24/2021   00:04:41   ( -69.58,  -5.33) 08/24/2021   00:05:52  ( -69.58,  -4.43)   34.81                71
 08/26/2021   14:42:08   ( -70.05, 135.93) 08/26/2021   14:41:27  ( -70.07, 135.98)    2.63                41
 08/26/2021   15:31:35   (  69.93, -56.59) 08/26/2021   15:32:11  (  69.96, -56.55)    3.38                36