Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 7 11.  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)
 07/11/2020   22:25:01   (  70.95,-158.60) 07/11/2020   22:23:54  (  70.97,-161.04)   88.35                67
 07/11/2020   23:14:45   ( -70.07,   7.72) 07/11/2020   23:14:20  ( -70.05,   7.75)    2.91                25
 07/12/2020   00:04:12   (  69.97, 175.22) 07/12/2020   00:05:05  (  69.97, 175.18)    1.72                53
 07/14/2020   14:41:46   (  70.13, -43.95) 07/14/2020   14:40:35  (  70.14, -43.94)    0.80                71
 07/14/2020   15:31:16   ( -70.02, 123.52) 07/14/2020   15:31:16  ( -70.00, 123.59)    3.07                 0
 07/14/2020   16:20:46   (  69.75, -69.21) 07/14/2020   16:21:58  (  69.77, -68.76)   17.45                72
 07/17/2020   06:58:17   (  70.07,  71.85) 07/17/2020   06:57:31  (  70.10,  71.89)    3.17                46
 07/17/2020   07:47:46   ( -70.02,-120.60) 07/17/2020   07:48:13  ( -70.01,-120.66)    2.59                27
 07/19/2020   22:25:05   ( -70.94,  21.37) 07/19/2020   22:23:58  ( -71.02,  18.87)   90.90                67
 07/19/2020   23:14:46   (  70.07,-172.28) 07/19/2020   23:14:26  (  70.06,-172.28)    0.77                20
 07/20/2020   00:04:16   ( -69.96,  -4.80) 07/20/2020   00:05:08  ( -69.97,  -4.83)    1.75                52
 07/22/2020   14:41:49   ( -70.16, 136.09) 07/22/2020   14:40:38  ( -70.14, 136.05)    3.23                71
 07/22/2020   15:31:17   (  70.00, -56.50) 07/22/2020   15:31:22  (  70.02, -56.46)    3.00                 5
 07/22/2020   16:20:49   ( -69.79, 110.84) 07/22/2020   16:22:01  ( -69.77, 111.23)   15.10                72
 07/25/2020   06:58:20   ( -70.10,-108.12) 07/25/2020   06:57:34  ( -70.10,-108.12)    0.61                46
 07/25/2020   07:47:47   (  69.98,  59.36) 07/25/2020   07:48:18  (  69.99,  59.36)    0.61                31