Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 4 27.  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)
 04/28/2018   13:51:23   (  70.99, -30.44) 04/28/2018   13:50:16  (  71.03, -32.73)   83.10                67
 04/28/2018   14:41:06   ( -70.16, 135.96) 04/28/2018   14:40:43  ( -70.14, 136.02)    3.03                23
 04/28/2018   15:30:33   (  70.06, -56.54) 04/28/2018   15:31:27  (  70.04, -56.51)    2.89                54
 05/01/2018   06:08:04   (  70.25,  84.34) 05/01/2018   06:06:57  (  70.26,  84.29)    2.17                67
 05/01/2018   06:57:34   ( -70.14,-108.19) 05/01/2018   06:57:39  ( -70.16,-108.24)    2.80                 5
 05/01/2018   07:47:06   (  69.76,  58.92) 05/01/2018   07:48:17  (  69.74,  59.71)   30.36                71
 05/03/2018   22:24:32   (  70.22,-159.83) 05/03/2018   22:23:52  (  70.23,-159.89)    2.73                40
 05/03/2018   23:14:02   ( -70.11,   7.65) 05/03/2018   23:14:34  ( -70.13,   7.59)    2.85                32
 05/06/2018   13:51:23   ( -70.85, 149.33) 05/06/2018   13:50:14  ( -70.88, 147.53)   65.80                69
 05/06/2018   14:41:01   (  70.14, -44.07) 05/06/2018   14:40:46  (  70.15, -44.00)    3.29                15
 05/06/2018   15:30:31   ( -70.03, 123.41) 05/06/2018   15:31:28  ( -70.04, 123.48)    3.21                57
 05/09/2018   06:08:00   ( -70.27, -95.65) 05/09/2018   06:06:57  ( -70.27, -95.73)    2.82                63
 05/09/2018   06:57:27   (  70.15,  71.83) 05/09/2018   06:57:40  (  70.12,  71.82)    3.35                13
 05/09/2018   07:47:05   ( -69.61,-121.29) 05/09/2018   07:48:15  ( -69.65,-120.15)   44.34                70