Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 3 29.  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)
 03/29/2020   22:24:59   ( -70.73,  20.94) 03/29/2020   22:23:50  ( -70.79,  19.21)   63.94                69
 03/29/2020   23:14:36   (  70.08,-172.37) 03/29/2020   23:14:23  (  70.09,-172.37)    1.24                13
 03/30/2020   00:04:06   ( -69.97,  -4.89) 03/30/2020   00:05:04  ( -69.96,  -4.85)    2.11                58
 04/01/2020   14:41:37   ( -70.15, 135.97) 04/01/2020   14:40:33  ( -70.13, 136.03)    3.23                64
 04/01/2020   15:31:04   (  70.04, -56.54) 04/01/2020   15:31:18  (  70.06, -56.56)    2.45                14
 04/01/2020   16:20:41   ( -69.55, 110.42) 04/01/2020   16:21:51  ( -69.50, 111.59)   45.95                70
 04/04/2020   06:58:04   ( -70.12,-108.20) 04/04/2020   06:57:27  ( -70.10,-108.16)    2.18                37
 04/04/2020   07:47:31   (  70.00,  59.28) 04/04/2020   07:48:11  (  69.99,  59.33)    2.46                40
 04/06/2020   22:24:58   (  70.39,-159.55) 04/06/2020   22:23:46  (  70.49,-160.31)   29.85                72
 04/06/2020   23:14:32   ( -70.08,   7.62) 04/06/2020   23:14:22  ( -70.08,   7.65)    1.08                10
 04/07/2020   00:03:59   (  69.96, 175.10) 04/07/2020   00:05:06  (  69.96, 175.13)    1.41                67
 04/09/2020   14:41:30   (  70.13, -44.06) 04/09/2020   14:40:35  (  70.15, -44.01)    3.16                55
 04/09/2020   15:31:00   ( -70.03, 123.44) 04/09/2020   15:31:17  ( -70.05, 123.46)    2.62                17
 04/09/2020   16:20:40   (  69.19, -70.05) 04/09/2020   16:21:47  (  69.20, -67.99)   81.72                67