Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 11 1.  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)
 11/01/2021   06:09:22   (  70.13,  84.24) 11/01/2021   06:08:23  (  70.11,  84.28)    2.94                59
 11/01/2021   06:58:52   ( -70.01,-108.29) 11/01/2021   06:59:05  ( -70.02,-108.27)    0.97                13
 11/01/2021   07:48:30   (  69.31,  58.39) 11/01/2021   07:49:38  (  69.31,  60.08)   66.29                68
 11/03/2021   22:25:51   (  70.11,-159.91) 11/03/2021   22:25:22  (  70.11,-159.97)    2.19                29
 11/03/2021   23:15:21   ( -69.99,   7.56) 11/03/2021   23:16:03  ( -69.97,   7.57)    3.26                42
 11/06/2021   13:52:50   ( -70.29, 148.59) 11/06/2021   13:51:38  ( -70.34, 148.13)   17.98                72
 11/06/2021   14:42:19   (  70.08, -44.07) 11/06/2021   14:42:19  (  70.06, -44.13)    2.78                 0
 11/06/2021   15:31:50   ( -69.91, 123.33) 11/06/2021   15:33:00  ( -69.92, 123.41)    2.94                70
 11/09/2021   06:09:21   ( -70.15, -95.73) 11/09/2021   06:08:33  ( -70.14, -95.79)    2.45                48
 11/09/2021   06:58:48   (  70.04,  71.75) 11/09/2021   06:59:17  (  70.02,  71.69)    2.90                29
 11/11/2021   21:36:10   (  70.75,-146.59) 11/11/2021   21:35:01  (  70.82,-148.44)   68.32                69
 11/11/2021   22:25:50   ( -70.10,  20.08) 11/11/2021   22:25:31  ( -70.09,  20.03)    2.05                19
 11/11/2021   23:15:17   (  69.99,-172.43) 11/11/2021   23:16:15  (  69.98,-172.48)    2.12                58
 11/14/2021   13:52:49   (  70.15, -31.60) 11/14/2021   13:51:47  (  70.15, -31.61)    1.14                62
 11/14/2021   14:42:19   ( -70.05, 135.89) 11/14/2021   14:42:29  ( -70.06, 135.85)    1.90                10
 11/14/2021   15:31:55   (  69.43, -57.31) 11/14/2021   15:33:04  (  69.47, -55.96)   52.66                69