Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 3 28.  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   ( -70.71,  20.91) 03/29/2020   22:23:49  ( -70.76,  19.25)   60.92                70
 03/29/2020   23:14:36   (  70.05,-172.41) 03/29/2020   23:14:22  (  70.06,-172.33)    3.07                14
 03/30/2020   00:04:05   ( -70.00,  -4.85) 03/30/2020   00:05:04  ( -69.98,  -4.89)    2.52                59
 04/01/2020   14:41:36   ( -70.18, 136.01) 04/01/2020   14:40:33  ( -70.16, 135.99)    3.22                63
 04/01/2020   15:31:04   (  70.02, -56.58) 04/01/2020   15:31:17  (  70.04, -56.52)    3.15                13
 04/01/2020   16:20:41   ( -69.53, 110.38) 04/01/2020   16:21:51  ( -69.53, 111.55)   45.59                70
 04/04/2020   06:58:04   ( -70.15,-108.16) 04/04/2020   06:57:28  ( -70.13,-108.20)    2.55                36
 04/04/2020   07:47:31   (  70.03,  59.32) 04/04/2020   07:48:12  (  70.01,  59.29)    2.43                41
 04/06/2020   22:24:58   (  70.42,-159.51) 04/06/2020   22:23:46  (  70.46,-160.26)   28.32                72
 04/06/2020   23:14:32   ( -70.10,   7.66) 04/06/2020   23:14:23  ( -70.10,   7.61)    1.92                 9
 04/07/2020   00:03:59   (  69.98, 175.14) 04/07/2020   00:05:07  (  69.99, 175.09)    1.87                68
 04/09/2020   14:41:29   (  70.15, -44.02) 04/09/2020   14:40:35  (  70.18, -44.05)    2.65                54
 04/09/2020   15:30:59   ( -70.06, 123.48) 04/09/2020   15:31:17  ( -70.08, 123.42)    3.12                18
 04/09/2020   16:20:40   (  69.16, -70.09) 04/09/2020   16:21:46  (  69.17, -67.95)   84.73                66