Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 10 16.  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)
 10/16/2021   06:09:17   (  70.37,  84.60) 10/16/2021   06:08:05  (  70.44,  83.83)   29.76                72
 10/16/2021   06:58:51   ( -70.03,-108.26) 10/16/2021   06:58:41  ( -70.03,-108.21)    1.84                10
 10/16/2021   07:48:18   (  69.94,  59.25) 10/16/2021   07:49:25  (  69.92,  59.27)    2.75                67
 10/18/2021   22:25:51   (  70.12,-159.89) 10/18/2021   22:24:58  (  70.11,-159.89)    1.26                53
 10/18/2021   23:15:21   ( -70.00,   7.58) 10/18/2021   23:15:40  ( -70.01,   7.58)    0.61                19
 10/19/2021   00:05:03   (  69.08, 173.97) 10/19/2021   00:06:09  (  69.10, 176.21)   88.85                66
 10/21/2021   14:42:21   (  70.08, -44.07) 10/21/2021   14:41:57  (  70.10, -44.11)    2.41                24
 10/21/2021   15:31:51   ( -69.97, 123.41) 10/21/2021   15:32:38  ( -69.94, 123.44)    3.25                47
 10/24/2021   06:09:24   ( -70.14, -95.75) 10/24/2021   06:08:11  ( -70.14, -95.73)    0.51                73
 10/24/2021   06:58:51   (  70.04,  71.75) 10/24/2021   06:58:55  (  70.03,  71.74)    0.44                 4
 10/24/2021   07:48:23   ( -69.82,-120.92) 10/24/2021   07:49:35  ( -69.82,-120.63)   11.40                72
 10/26/2021   22:25:53   ( -70.09,  20.07) 10/26/2021   22:25:08  ( -70.08,  20.12)    2.56                45
 10/26/2021   23:15:20   (  69.98,-172.44) 10/26/2021   23:15:52  (  69.97,-172.41)    1.75                32
 10/29/2021   13:52:44   (  70.64, -30.89) 10/29/2021   13:51:34  (  70.66, -32.35)   53.71                70
 10/29/2021   14:42:22   ( -70.10, 135.95) 10/29/2021   14:42:07  ( -70.08, 135.89)    3.20                15
 10/29/2021   15:31:50   (  69.93, -56.64) 10/29/2021   15:32:50  (  69.92, -56.57)    3.09                60