Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 9 21.  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)
 09/21/2020   22:25:31   ( -70.82,  21.16) 09/21/2020   22:24:23  ( -70.87,  19.08)   76.31                68
 09/21/2020   23:15:10   (  70.06,-172.32) 09/21/2020   23:14:54  (  70.08,-172.35)    2.16                16
 09/22/2020   00:04:40   ( -69.95,  -4.83) 09/22/2020   00:05:35  ( -69.93,  -4.81)    3.20                55
 09/24/2020   14:42:12   ( -70.16, 136.06) 09/24/2020   14:41:04  ( -70.14, 136.02)    3.22                68
 09/24/2020   15:31:39   (  70.05, -56.45) 09/24/2020   15:31:48  (  70.03, -56.51)    3.38                 9
 09/24/2020   16:21:14   ( -69.67, 110.66) 09/24/2020   16:22:25  ( -69.67, 111.35)   26.88                71
 09/27/2020   06:58:43   ( -70.10,-108.15) 09/27/2020   06:57:59  ( -70.09,-108.14)    1.08                44
 09/27/2020   07:48:10   (  69.98,  59.33) 09/27/2020   07:48:43  (  69.98,  59.33)    0.11                33
 09/29/2020   22:25:33   (  70.73,-158.97) 09/29/2020   22:24:24  (  70.78,-160.78)   66.51                69
 09/29/2020   23:15:14   ( -70.03,   7.63) 09/29/2020   23:14:54  ( -70.04,   7.70)    3.21                20
 09/30/2020   00:04:40   (  69.97, 175.19) 09/30/2020   00:05:38  (  69.94, 175.17)    3.30                58
 10/02/2020   14:42:14   (  70.11, -44.01) 10/02/2020   14:41:07  (  70.10, -43.94)    2.66                67
 10/02/2020   15:31:44   ( -70.01, 123.49) 10/02/2020   15:31:49  ( -70.00, 123.54)    2.57                 5
 10/02/2020   16:21:17   (  69.56, -69.49) 10/02/2020   16:22:27  (  69.58, -68.53)   37.30                70