Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 7 17.  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)
 07/17/2019   22:25:23   ( -70.15,  20.20) 07/17/2019   22:24:14  ( -70.16,  20.16)    1.77                69
 07/17/2019   23:14:50   (  70.05,-172.30) 07/17/2019   23:14:58  (  70.03,-172.34)    2.72                 8
 07/18/2019   00:04:24   ( -69.72,  -5.13) 07/18/2019   00:05:36  ( -69.74,  -4.59)   21.20                72
 07/20/2019   14:41:53   ( -70.12, 136.03) 07/20/2019   14:41:09  ( -70.11, 136.00)    1.61                44
 07/20/2019   15:31:21   (  69.96, -56.55) 07/20/2019   15:31:53  (  69.98, -56.50)    3.28                32
 07/23/2019   06:08:43   (  70.74,  85.20) 07/23/2019   06:07:34  (  70.78,  83.38)   66.80                69
 07/23/2019   06:58:23   ( -70.08,-108.13) 07/23/2019   06:58:04  ( -70.06,-108.16)    2.46                19
 07/23/2019   07:47:51   (  69.92,  59.28) 07/23/2019   07:48:48  (  69.94,  59.33)    2.91                57
 07/25/2019   22:25:22   (  70.15,-159.78) 07/25/2019   22:24:17  (  70.16,-159.86)    2.95                65
 07/25/2019   23:14:52   ( -70.05,   7.70) 07/25/2019   23:14:58  ( -70.02,   7.68)    3.18                 6
 07/26/2019   00:04:26   (  69.55, 174.66) 07/26/2019   00:05:36  (  69.58, 175.63)   38.13                70
 07/28/2019   14:41:52   (  70.11, -43.96) 07/28/2019   14:41:12  (  70.12, -44.03)    2.73                40
 07/28/2019   15:31:22   ( -70.01, 123.53) 07/28/2019   15:31:53  ( -69.98, 123.51)    3.56                31