Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 4 10.  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)
 04/12/2020   06:58:01   (  70.12,  71.79) 04/12/2020   06:57:29  (  70.10,  71.83)    2.22                32
 04/12/2020   07:47:31   ( -70.01,-120.73) 04/12/2020   07:48:11  ( -70.02,-120.72)    0.92                40
 04/14/2020   22:24:58   ( -70.50,  20.57) 04/14/2020   22:23:47  ( -70.57,  19.56)   38.24                71
 04/14/2020   23:14:30   (  70.12,-172.34) 04/14/2020   23:14:24  (  70.09,-172.38)    3.26                 6
 04/15/2020   00:04:00   ( -70.01,  -4.86) 04/15/2020   00:05:06  ( -70.00,  -4.92)    2.97                66
 04/17/2020   14:41:33   ( -70.19, 135.99) 04/17/2020   14:40:35  ( -70.19, 135.94)    2.14                58
 04/17/2020   15:31:00   (  70.08, -56.53) 04/17/2020   15:31:19  (  70.08, -56.59)    2.17                19
 04/17/2020   16:20:41   ( -69.37, 110.14) 04/17/2020   16:21:49  ( -69.35, 111.81)   65.38                68
 04/20/2020   06:58:03   ( -70.12,-108.25) 04/20/2020   06:57:28  ( -70.12,-108.19)    2.13                35
 04/20/2020   07:47:30   (  70.00,  59.23) 04/20/2020   07:48:12  (  70.01,  59.28)    2.45                42
 04/22/2020   22:24:58   (  70.48,-159.48) 04/22/2020   22:23:47  (  70.53,-160.37)   33.49                71
 04/22/2020   23:14:33   ( -70.11,   7.62) 04/22/2020   23:14:23  ( -70.11,   7.60)    0.99                10
 04/23/2020   00:04:00   (  69.99, 175.09) 04/23/2020   00:05:07  (  70.00, 175.07)    1.63                67