Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 12 24.  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)
 12/24/2021   13:52:33   ( -70.89, 149.47) 12/24/2021   13:51:25  ( -70.93, 147.37)   76.76                68
 12/24/2021   14:42:12   (  70.13, -44.00) 12/24/2021   14:41:56  (  70.12, -44.04)    1.60                16
 12/24/2021   15:31:42   ( -70.02, 123.47) 12/24/2021   15:32:37  ( -69.99, 123.48)    2.64                55
 12/27/2021   06:09:13   ( -70.23, -95.63) 12/27/2021   06:08:03  ( -70.20, -95.69)    3.49                70
 12/27/2021   06:58:41   (  70.07,  71.79) 12/27/2021   06:58:47  (  70.08,  71.80)    1.91                 6
 12/27/2021   07:48:13   ( -69.84,-120.89) 12/27/2021   07:49:25  ( -69.79,-120.44)   18.24                72
 12/29/2021   22:25:41   ( -70.15,  20.15) 12/29/2021   22:24:53  ( -70.16,  20.15)    0.97                48
 12/29/2021   23:15:08   (  70.05,-172.35) 12/29/2021   23:15:37  (  70.05,-172.36)    0.25                29
 01/01/2022   13:52:25   (  71.00, -30.33) 01/01/2022   13:51:18  (  71.06, -32.83)   90.51                67
 01/01/2022   14:42:09   ( -70.13, 136.00) 01/01/2022   14:41:44  ( -70.13, 135.99)    0.45                25
 01/01/2022   15:31:36   (  70.02, -56.51) 01/01/2022   15:32:28  (  70.02, -56.53)    0.73                52
 01/04/2022   06:09:06   (  70.25,  84.43) 01/04/2022   06:07:54  (  70.24,  84.28)    5.66                72
 01/04/2022   06:58:37   ( -70.09,-108.17) 01/04/2022   06:58:35  ( -70.10,-108.18)    1.14                 2
 01/04/2022   07:48:05   (  69.92,  59.24) 01/04/2022   07:49:17  (  69.88,  59.45)    9.10                72
 01/06/2022   22:25:35   (  70.14,-159.84) 01/06/2022   22:24:44  (  70.17,-159.82)    2.82                51
 01/06/2022   23:15:05   ( -70.04,   7.65) 01/06/2022   23:15:26  ( -70.07,   7.64)    3.58                21