Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 5 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)
 05/17/2019   14:41:31   ( -70.12, 136.01) 05/17/2019   14:40:45  ( -70.10, 136.06)    2.69                46
 05/17/2019   15:30:58   (  70.01, -56.50) 05/17/2019   15:31:29  (  69.99, -56.46)    2.54                31
 05/20/2019   06:08:21   (  70.80,  85.28) 05/20/2019   06:07:12  (  70.85,  83.32)   71.62                69
 05/20/2019   06:58:02   ( -70.10,-108.13) 05/20/2019   06:57:42  ( -70.12,-108.20)    3.10                20
 05/20/2019   07:47:29   (  69.99,  59.35) 05/20/2019   07:48:25  (  69.96,  59.36)    3.65                56
 05/22/2019   22:25:04   (  70.13,-159.85) 05/22/2019   22:23:55  (  70.13,-159.77)    3.01                69
 05/22/2019   23:14:34   ( -70.03,   7.64) 05/22/2019   23:14:37  ( -70.03,   7.70)    2.02                 3
 05/23/2019   00:04:05   (  69.69, 174.82) 05/23/2019   00:05:16  (  69.66, 175.56)   28.90                71
 05/25/2019   14:41:35   (  70.10, -44.01) 05/25/2019   14:40:51  (  70.11, -43.96)    1.66                44
 05/25/2019   15:31:05   ( -70.01, 123.49) 05/25/2019   15:31:33  ( -70.00, 123.51)    0.93                28
 05/28/2019   06:08:26   ( -70.90, -94.58) 05/28/2019   06:07:18  ( -70.97, -96.89)   84.04                68
 05/28/2019   06:58:05   (  70.08,  71.83) 05/28/2019   06:57:46  (  70.08,  71.84)    0.71                19
 05/28/2019   07:47:35   ( -69.98,-120.67) 05/28/2019   07:48:28  ( -69.98,-120.68)    0.91                53
 05/30/2019   22:25:09   ( -70.16,  20.19) 05/30/2019   22:23:58  ( -70.16,  20.18)    0.90                71
 05/30/2019   23:14:36   (  70.04,-172.33) 05/30/2019   23:14:42  (  70.06,-172.35)    1.58                 6
 05/31/2019   00:04:09   ( -69.79,  -5.06) 05/31/2019   00:05:21  ( -69.79,  -4.64)   16.37                72