Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 12 3.  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)
 12/03/2021   06:09:17   (  70.17,  84.29) 12/03/2021   06:08:32  (  70.19,  84.25)    3.10                45
 12/03/2021   06:58:47   ( -70.06,-108.23) 12/03/2021   06:59:13  ( -70.06,-108.23)    0.64                26
 12/05/2021   22:25:47   (  70.12,-159.90) 12/05/2021   22:25:23  (  70.13,-159.87)    1.71                24
 12/05/2021   23:15:17   ( -70.01,   7.58) 12/05/2021   23:16:04  ( -69.99,   7.65)    3.14                47
 12/08/2021   13:52:47   ( -70.33, 148.64) 12/08/2021   13:51:34  ( -70.39, 148.19)   18.21                73
 12/08/2021   14:42:16   (  70.11, -44.03) 12/08/2021   14:42:15  (  70.11, -44.07)    1.67                 1
 12/08/2021   15:31:46   ( -70.00, 123.45) 12/08/2021   15:32:56  ( -69.98, 123.45)    2.69                70
 12/11/2021   06:09:19   ( -70.15, -95.73) 12/11/2021   06:08:22  ( -70.17, -95.69)    2.51                57
 12/11/2021   06:58:46   (  70.04,  71.75) 12/11/2021   06:59:06  (  70.05,  71.80)    2.32                20
 12/11/2021   07:48:28   ( -69.28,-121.66) 12/11/2021   07:49:35  ( -69.28,-119.75)   74.96                67
 12/13/2021   22:25:47   ( -70.13,  20.12) 12/13/2021   22:25:13  ( -70.16,  20.11)    2.89                34
 12/13/2021   23:15:14   (  70.02,-172.40) 12/13/2021   23:15:57  (  70.05,-172.41)    3.11                43
 12/16/2021   13:52:40   (  70.54, -31.05) 12/16/2021   13:51:29  (  70.56, -32.06)   37.72                71
 12/16/2021   14:42:16   ( -70.11, 135.96) 12/16/2021   14:42:04  ( -70.10, 135.98)    0.92                12
 12/16/2021   15:31:43   (  69.99, -56.56) 12/16/2021   15:32:48  (  69.99, -56.55)    0.40                65