Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 10 20.  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)
 10/21/2019   22:25:36   ( -70.94,  21.33) 10/21/2019   22:24:29  ( -70.97,  18.96)   86.15                67
 10/21/2019   23:15:17   (  70.07,-172.31) 10/21/2019   23:14:58  (  70.07,-172.29)    0.99                19
 10/22/2019   00:04:47   ( -69.96,  -4.84) 10/22/2019   00:05:40  ( -69.98,  -4.84)    2.66                53
 10/24/2019   14:42:18   ( -70.19, 136.09) 10/24/2019   14:41:07  ( -70.17, 136.02)    3.16                71
 10/24/2019   15:31:46   (  70.03, -56.50) 10/24/2019   15:31:51  (  70.05, -56.49)    2.83                 5
 10/24/2019   16:21:18   ( -69.81, 110.83) 10/24/2019   16:22:30  ( -69.81, 111.20)   14.04                72
 10/27/2019   06:58:48   ( -70.14,-108.10) 10/27/2019   06:58:01  ( -70.15,-108.18)    3.25                47
 10/27/2019   07:48:16   (  69.98,  59.31) 10/27/2019   07:48:44  (  69.98,  59.38)    2.80                28
 10/29/2019   22:25:35   (  70.90,-158.72) 10/29/2019   22:24:27  (  70.96,-161.03)   84.40                68
 10/29/2019   23:15:18   ( -70.09,   7.71) 10/29/2019   23:14:54  ( -70.08,   7.69)    0.96                24
 10/30/2019   00:04:45   (  69.98, 175.19) 10/30/2019   00:05:38  (  69.97, 175.17)    1.36                53
 11/01/2019   14:42:18   (  70.14, -43.98) 11/01/2019   14:41:06  (  70.16, -43.98)    2.75                72
 11/01/2019   15:31:48   ( -70.03, 123.51) 11/01/2019   15:31:47  ( -70.02, 123.56)    2.81                 1
 11/01/2019   16:21:17   (  69.81, -69.16) 11/01/2019   16:22:29  (  69.80, -68.80)   13.66                72