Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 3 8.  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)
 03/08/2021   23:14:48   ( -70.11,   7.70) 03/08/2021   23:14:12  ( -70.08,   7.67)    3.01                36
 03/09/2021   00:04:16   (  69.95, 175.12) 03/09/2021   00:04:56  (  69.96, 175.16)    1.69                40
 03/11/2021   14:41:42   (  70.42, -43.61) 03/11/2021   14:40:31  (  70.50, -44.53)   35.65                71
 03/11/2021   15:31:17   ( -70.03, 123.46) 03/11/2021   15:31:06  ( -70.05, 123.49)    2.81                11
 03/11/2021   16:20:44   (  69.92, -69.04) 03/11/2021   16:21:50  (  69.93, -69.02)    1.03                66
 03/14/2021   06:58:15   (  70.11,  71.82) 03/14/2021   06:57:18  (  70.11,  71.86)    1.40                57
 03/14/2021   07:47:45   ( -70.00,-120.70) 03/14/2021   07:48:00  ( -70.02,-120.69)    2.84                15
 03/14/2021   08:37:24   (  69.22,  45.90) 03/14/2021   08:38:31  (  69.21,  47.80)   74.98                67
 03/16/2021   23:14:43   (  70.07,-172.35) 03/16/2021   23:14:12  (  70.08,-172.33)    1.96                31
 03/17/2021   00:04:13   ( -69.96,  -4.87) 03/17/2021   00:04:53  ( -69.94,  -4.80)    3.24                40
 03/19/2021   14:41:38   ( -70.41, 136.38) 03/19/2021   14:40:26  ( -70.44, 135.58)   30.01                72
 03/19/2021   15:31:09   (  70.08, -56.45) 03/19/2021   15:31:05  (  70.06, -56.52)    3.18                 4
 03/19/2021   16:20:40   ( -69.92, 110.96) 03/19/2021   16:21:46  ( -69.92, 111.01)    1.98                66