Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 11 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)
 11/22/2017   06:08:55   (  70.85,  85.31) 11/22/2017   06:07:47  (  70.91,  83.19)   77.56                68
 11/22/2017   06:58:37   ( -70.08,-108.20) 11/22/2017   06:58:15  ( -70.08,-108.17)    1.00                22
 11/22/2017   07:48:04   (  69.98,  59.30) 11/22/2017   07:48:59  (  69.97,  59.31)    0.76                55
 11/24/2017   22:25:36   (  70.13,-159.87) 11/24/2017   22:24:27  (  70.15,-159.82)    2.79                69
 11/24/2017   23:15:05   ( -70.08,   7.68) 11/24/2017   23:15:09  ( -70.06,   7.64)    2.93                 4
 11/25/2017   00:04:37   (  69.70, 174.80) 11/25/2017   00:05:48  (  69.68, 175.51)   27.60                71
 11/27/2017   14:42:04   (  70.12, -44.00) 11/27/2017   14:41:21  (  70.13, -44.02)    1.24                43
 11/27/2017   15:31:34   ( -70.01, 123.48) 11/27/2017   15:32:03  ( -70.03, 123.45)    2.05                29
 11/30/2017   06:08:53   ( -70.87, -94.65) 11/30/2017   06:07:45  ( -70.94, -96.86)   80.71                68
 11/30/2017   06:58:32   (  70.10,  71.85) 11/30/2017   06:58:15  (  70.11,  71.78)    2.96                17
 11/30/2017   07:48:03   ( -69.94,-120.74) 11/30/2017   07:48:56  ( -69.95,-120.66)    2.98                53
 12/02/2017   22:25:33   ( -70.14,  20.15) 12/02/2017   22:24:23  ( -70.14,  20.20)    2.10                70
 12/02/2017   23:15:00   (  70.02,-172.37) 12/02/2017   23:15:07  (  70.04,-172.34)    2.30                 7
 12/03/2017   00:04:33   ( -69.76,  -5.11) 12/03/2017   00:05:45  ( -69.72,  -4.55)   22.02                72