Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 12 27.  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)
 12/27/2021   06:09:13   ( -70.22, -95.64) 12/27/2021   06:08:03  ( -70.21, -95.69)    2.67                70
 12/27/2021   06:58:41   (  70.06,  71.79) 12/27/2021   06:58:47  (  70.08,  71.80)    2.24                 6
 12/27/2021   07:48:13   ( -69.84,-120.90) 12/27/2021   07:49:25  ( -69.79,-120.45)   17.98                72
 12/29/2021   22:25:41   ( -70.15,  20.15) 12/29/2021   22:24:53  ( -70.17,  20.15)    2.02                48
 12/29/2021   23:15:08   (  70.05,-172.36) 12/29/2021   23:15:37  (  70.05,-172.36)    0.43                29
 01/01/2022   13:52:25   (  71.00, -30.33) 01/01/2022   13:51:18  (  71.06, -32.83)   90.62                67
 01/01/2022   14:42:09   ( -70.12, 135.99) 01/01/2022   14:41:44  ( -70.13, 135.98)    1.11                25
 01/01/2022   15:31:36   (  70.02, -56.51) 01/01/2022   15:32:28  (  70.02, -56.53)    0.83                52
 01/04/2022   06:09:06   (  70.25,  84.43) 01/04/2022   06:07:54  (  70.25,  84.27)    5.98                72
 01/04/2022   06:58:37   ( -70.09,-108.17) 01/04/2022   06:58:35  ( -70.10,-108.19)    1.70                 2
 01/04/2022   07:48:05   (  69.92,  59.24) 01/04/2022   07:49:18  (  69.94,  59.37)    5.03                73
 01/06/2022   22:25:35   (  70.15,-159.83) 01/06/2022   22:24:44  (  70.17,-159.83)    2.13                51
 01/06/2022   23:15:05   ( -70.05,   7.65) 01/06/2022   23:15:25  ( -70.02,   7.71)    3.19                20
 01/07/2022   00:04:48   (  69.05, 173.95) 01/07/2022   00:05:53  (  69.07, 176.41)   97.66                65
 01/09/2022   14:42:01   (  70.15, -43.94) 01/09/2022   14:41:34  (  70.15, -44.02)    2.84                27
 01/09/2022   15:31:32   ( -69.99, 123.47) 01/09/2022   15:32:15  ( -70.00, 123.53)    2.70                43