Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2016 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)
 09/21/2016   14:42:07   (  70.19, -43.89) 09/21/2016   14:41:17  (  70.17, -43.93)    2.84                50
 09/21/2016   15:31:37   ( -70.07, 123.58) 09/21/2016   15:31:59  ( -70.09, 123.51)    3.56                22
 09/21/2016   16:21:21   (  69.03, -70.18) 09/21/2016   16:22:26  (  69.05, -67.68)   99.42                65
 09/24/2016   06:58:37   (  70.13,  71.91) 09/24/2016   06:58:14  (  70.12,  71.90)    1.41                23
 09/24/2016   07:48:07   ( -70.02,-120.61) 09/24/2016   07:48:56  ( -70.04,-120.66)    2.86                49
 09/26/2016   22:25:39   ( -70.17,  20.21) 09/26/2016   22:24:26  ( -70.20,  20.23)    3.18                73
 09/26/2016   23:15:06   (  70.06,-172.30) 09/26/2016   23:15:10  (  70.07,-172.26)    1.48                 4
 09/27/2016   00:04:37   ( -69.90,  -4.89) 09/27/2016   00:05:50  ( -69.89,  -4.67)    8.97                73
 09/29/2016   14:42:08   ( -70.16, 136.07) 09/29/2016   14:41:23  ( -70.15, 136.06)    0.57                45
 09/29/2016   15:31:35   (  70.05, -56.44) 09/29/2016   15:32:07  (  70.03, -56.44)    2.27                32
 10/02/2016   06:08:58   (  70.73,  85.17) 10/02/2016   06:07:49  (  70.77,  83.52)   60.78                69
 10/02/2016   06:58:37   ( -70.14,-108.08) 10/02/2016   06:58:20  ( -70.11,-108.11)    3.10                17
 10/02/2016   07:48:05   (  69.97,  59.33) 10/02/2016   07:49:04  (  69.99,  59.38)    2.97                59
 10/04/2016   22:25:37   (  70.15,-159.80) 10/04/2016   22:24:35  (  70.16,-159.74)    2.42                62
 10/04/2016   23:15:07   ( -70.05,   7.69) 10/04/2016   23:15:17  ( -70.07,   7.71)    2.26                10
 10/05/2016   00:04:43   (  69.44, 174.49) 10/05/2016   00:05:52  (  69.47, 175.91)   55.48                69