Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 4 4.  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)
 04/04/2020   06:58:04   ( -70.12,-108.20) 04/04/2020   06:57:27  ( -70.11,-108.17)    1.67                37
 04/04/2020   07:47:31   (  70.01,  59.29) 04/04/2020   07:48:12  (  70.04,  59.25)    3.30                41
 04/06/2020   22:24:58   (  70.42,-159.53) 04/06/2020   22:23:46  (  70.49,-160.31)   30.05                72
 04/06/2020   23:14:32   ( -70.09,   7.64) 04/06/2020   23:14:22  ( -70.08,   7.64)    0.88                10
 04/07/2020   00:03:59   (  69.98, 175.13) 04/07/2020   00:05:06  (  69.96, 175.13)    1.90                67
 04/09/2020   14:41:30   (  70.17, -44.01) 04/09/2020   14:40:35  (  70.15, -44.01)    1.82                55
 04/09/2020   15:31:00   ( -70.06, 123.48) 04/09/2020   15:31:17  ( -70.06, 123.45)    1.17                17
 04/09/2020   16:20:40   (  69.23, -70.01) 04/09/2020   16:21:47  (  69.20, -67.99)   79.97                67
 04/12/2020   06:57:58   (  70.13,  71.82) 04/12/2020   06:57:30  (  70.13,  71.79)    1.26                28
 04/12/2020   07:47:28   ( -70.03,-120.69) 04/12/2020   07:48:12  ( -70.04,-120.75)    2.45                44
 04/14/2020   22:24:56   ( -70.33,  20.34) 04/14/2020   22:23:43  ( -70.38,  19.86)   18.62                73
 04/14/2020   23:14:25   (  70.10,-172.34) 04/14/2020   23:14:24  (  70.12,-172.41)    3.07                 1
 04/15/2020   00:03:56   ( -69.95,  -4.93) 04/15/2020   00:05:05  ( -69.96,  -4.87)    2.78                69
 04/17/2020   14:41:27   ( -70.14, 135.94) 04/17/2020   14:40:34  ( -70.15, 135.99)    2.60                53
 04/17/2020   15:30:53   (  70.07, -56.51) 04/17/2020   15:31:18  (  70.05, -56.54)    2.63                25