Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 12 4.  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)
 12/05/2021   22:25:47   (  70.11,-159.91) 12/05/2021   22:25:23  (  70.13,-159.88)    2.72                24
 12/05/2021   23:15:17   ( -70.00,   7.57) 12/05/2021   23:16:04  ( -70.00,   7.64)    2.77                47
 12/08/2021   13:52:47   ( -70.32, 148.63) 12/08/2021   13:51:34  ( -70.40, 148.18)   18.96                73
 12/08/2021   14:42:16   (  70.10, -44.04) 12/08/2021   14:42:15  (  70.12, -44.08)    2.59                 1
 12/08/2021   15:31:46   ( -70.00, 123.44) 12/08/2021   15:32:56  ( -69.99, 123.44)    1.00                70
 12/11/2021   06:09:18   ( -70.20, -95.67) 12/11/2021   06:08:22  ( -70.18, -95.70)    2.71                56
 12/11/2021   06:58:45   (  70.09,  71.82) 12/11/2021   06:59:06  (  70.06,  71.79)    3.26                21
 12/11/2021   07:48:27   ( -69.33,-121.59) 12/11/2021   07:49:35  ( -69.29,-119.76)   72.02                68
 12/13/2021   22:25:47   ( -70.13,  20.11) 12/13/2021   22:25:12  ( -70.12,  20.17)    2.45                35
 12/13/2021   23:15:14   (  70.01,-172.41) 12/13/2021   23:15:56  (  70.00,-172.35)    2.49                42
 12/16/2021   13:52:40   (  70.53, -31.06) 12/16/2021   13:51:29  (  70.57, -32.08)   38.25                71
 12/16/2021   14:42:16   ( -70.10, 135.95) 12/16/2021   14:42:04  ( -70.12, 135.95)    1.81                12
 12/16/2021   15:31:43   (  69.98, -56.57) 12/16/2021   15:32:48  (  70.00, -56.57)    2.43                65