Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 12 21.  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)
 12/21/2021   22:25:44   (  70.15,-159.86) 12/21/2021   22:25:05  (  70.15,-159.86)    0.22                39
 12/21/2021   23:15:14   ( -70.03,   7.61) 12/21/2021   23:15:46  ( -70.02,   7.66)    2.42                32
 12/24/2021   13:52:33   ( -70.85, 149.43) 12/24/2021   13:51:24  ( -70.90, 147.40)   73.92                69
 12/24/2021   14:42:12   (  70.09, -44.05) 12/24/2021   14:41:55  (  70.10, -44.01)    2.04                17
 12/24/2021   15:31:41   ( -70.04, 123.50) 12/24/2021   15:32:37  ( -70.02, 123.43)    3.10                56
 12/27/2021   06:09:13   ( -70.19, -95.67) 12/27/2021   06:08:02  ( -70.18, -95.66)    1.46                71
 12/27/2021   06:58:40   (  70.08,  71.82) 12/27/2021   06:58:46  (  70.07,  71.83)    2.21                 6
 12/27/2021   07:48:13   ( -69.81,-120.93) 12/27/2021   07:49:25  ( -69.82,-120.49)   17.11                72
 12/29/2021   22:25:42   ( -70.12,  20.11) 12/29/2021   22:24:53  ( -70.14,  20.18)    3.70                49
 12/29/2021   23:15:09   (  70.01,-172.40) 12/29/2021   23:15:37  (  70.03,-172.33)    3.45                28
 01/01/2022   13:52:25   (  71.02, -30.30) 01/01/2022   13:51:18  (  71.04, -32.80)   90.44                67
 01/01/2022   14:42:10   ( -70.09, 135.95) 01/01/2022   14:41:44  ( -70.11, 136.02)    2.94                26
 01/01/2022   15:31:37   (  69.98, -56.56) 01/01/2022   15:32:28  (  70.00, -56.51)    3.02                51