Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 2 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)
 02/04/2021   23:15:01   ( -70.10,   7.70) 02/04/2021   23:14:17  ( -70.09,   7.66)    1.97                44
 02/05/2021   00:04:29   (  69.95, 175.13) 02/05/2021   00:05:01  (  69.98, 175.13)    3.62                32
 02/07/2021   14:41:49   (  70.74, -43.11) 02/07/2021   14:40:40  (  70.76, -44.95)   67.36                69
 02/07/2021   15:31:30   ( -70.02, 123.47) 02/07/2021   15:31:10  ( -70.03, 123.52)    2.06                20
 02/07/2021   16:20:57   (  69.92, -69.03) 02/07/2021   16:21:54  (  69.92, -69.01)    0.82                57
 02/10/2021   06:58:29   (  70.11,  71.83) 02/10/2021   06:57:23  (  70.13,  71.82)    2.04                66
 02/10/2021   07:47:59   ( -70.00,-120.69) 02/10/2021   07:48:05  ( -70.03,-120.70)    3.27                 6
 02/10/2021   08:37:32   (  69.56,  46.35) 02/10/2021   08:38:42  (  69.55,  47.31)   37.28                70
 02/12/2021   23:14:58   (  70.07,-172.34) 02/12/2021   23:14:17  (  70.07,-172.33)    0.35                41
 02/13/2021   00:04:28   ( -69.97,  -4.85) 02/13/2021   00:04:59  ( -69.97,  -4.85)    0.75                31
 02/15/2021   14:41:49   ( -70.75, 136.89) 02/15/2021   14:40:40  ( -70.81, 134.97)   70.58                69
 02/15/2021   15:31:27   (  70.04, -56.51) 02/15/2021   15:31:11  (  70.03, -56.48)    1.50                16
 02/15/2021   16:20:57   ( -69.93, 110.98) 02/15/2021   16:21:53  ( -69.92, 110.99)    1.07                56