Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 10 26.  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)
 10/26/2021   22:25:53   ( -70.09,  20.06) 10/26/2021   22:25:09  ( -70.12,  20.05)    3.05                44
 10/26/2021   23:15:20   (  70.00,-172.43) 10/26/2021   23:15:53  (  70.00,-172.46)    1.29                33
 10/29/2021   13:52:45   (  70.59, -30.97) 10/29/2021   13:51:35  (  70.68, -32.39)   53.60                70
 10/29/2021   14:42:23   ( -70.04, 135.86) 10/29/2021   14:42:07  ( -70.06, 135.91)    2.99                16
 10/29/2021   15:31:50   (  69.94, -56.64) 10/29/2021   15:32:51  (  69.94, -56.61)    1.41                61
 11/01/2021   06:09:22   (  70.14,  84.26) 11/01/2021   06:08:24  (  70.15,  84.21)    2.25                58
 11/01/2021   06:58:52   ( -70.03,-108.27) 11/01/2021   06:59:05  ( -70.00,-108.24)    3.21                13
 11/01/2021   07:48:30   (  69.32,  58.40) 11/01/2021   07:49:38  (  69.30,  60.09)   66.27                68
 11/03/2021   22:25:50   (  70.12,-159.89) 11/03/2021   22:25:21  (  70.10,-159.95)    3.53                29
 11/03/2021   23:15:21   ( -69.96,   7.52) 11/03/2021   23:16:02  ( -69.95,   7.60)    3.39                41
 11/06/2021   13:52:51   ( -70.27, 148.56) 11/06/2021   13:51:38  ( -70.32, 148.16)   15.80                73
 11/06/2021   14:42:20   (  70.04, -44.12) 11/06/2021   14:42:19  (  70.05, -44.11)    0.65                 1
 11/06/2021   15:31:50   ( -69.94, 123.37) 11/06/2021   15:33:01  ( -69.95, 123.36)    1.12                71