Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 4 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)
 04/20/2020   06:57:58   ( -70.12,-108.22) 04/20/2020   06:57:28  ( -70.13,-108.20)    1.04                30
 04/20/2020   07:47:25   (  70.01,  59.27) 04/20/2020   07:48:12  (  70.01,  59.29)    0.93                47
 04/22/2020   22:24:55   (  70.27,-159.76) 04/22/2020   22:23:43  (  70.31,-160.03)   10.98                72
 04/22/2020   23:14:26   ( -70.12,   7.65) 04/22/2020   23:14:23  ( -70.11,   7.59)    2.06                 3
 04/23/2020   00:03:54   (  69.95, 175.05) 04/23/2020   00:05:06  (  69.95, 175.15)    3.90                72
 04/25/2020   14:41:25   (  70.15, -44.06) 04/25/2020   14:40:35  (  70.15, -44.00)    2.22                50
 04/25/2020   15:30:55   ( -70.05, 123.43) 04/25/2020   15:31:17  ( -70.05, 123.46)    1.08                22
 04/28/2020   06:57:53   (  70.13,  71.80) 04/28/2020   06:57:30  (  70.14,  71.78)    0.94                23
 04/28/2020   07:47:23   ( -70.04,-120.71) 04/28/2020   07:48:12  ( -70.04,-120.75)    1.75                49
 04/30/2020   22:24:53   ( -70.24,  20.18) 04/30/2020   22:23:40  ( -70.24,  20.09)    3.33                73
 04/30/2020   23:14:21   (  70.06,-172.43) 04/30/2020   23:14:23  (  70.08,-172.36)    3.60                 2
 05/01/2020   00:03:51   ( -69.97,  -4.93) 05/01/2020   00:05:04  ( -69.93,  -4.81)    6.28                73
 05/03/2020   14:41:22   ( -70.17, 135.95) 05/03/2020   14:40:34  ( -70.18, 135.95)    1.77                48
 05/03/2020   15:30:49   (  70.04, -56.58) 05/03/2020   15:31:17  (  70.03, -56.51)    3.09                28