Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 1 25.  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)
 01/25/2019   14:41:43   ( -70.13, 136.00) 01/25/2019   14:41:06  ( -70.13, 135.97)    1.20                37
 01/25/2019   15:31:10   (  70.02, -56.51) 01/25/2019   15:31:50  (  70.02, -56.55)    1.81                40
 01/28/2019   06:08:36   (  70.53,  84.82) 01/28/2019   06:07:25  (  70.58,  83.72)   41.48                71
 01/28/2019   06:58:11   ( -70.09,-108.18) 01/28/2019   06:57:58  ( -70.07,-108.16)    2.58                13
 01/28/2019   07:47:38   (  69.98,  59.31) 01/28/2019   07:48:42  (  69.96,  59.32)    2.82                64
 01/30/2019   22:25:10   (  70.15,-159.84) 01/30/2019   22:24:10  (  70.15,-159.83)    0.35                60
 01/30/2019   23:14:40   ( -70.05,   7.64) 01/30/2019   23:14:52  ( -70.06,   7.63)    1.33                12
 01/31/2019   00:04:17   (  69.38, 174.38) 01/31/2019   00:05:25  (  69.36, 175.96)   62.06                68
 02/02/2019   14:41:39   (  70.10, -44.03) 02/02/2019   14:41:03  (  70.09, -43.97)    2.52                36
 02/02/2019   15:31:09   ( -70.00, 123.46) 02/02/2019   15:31:45  ( -70.00, 123.49)    1.44                36
 02/05/2019   06:08:33   ( -70.60, -95.07) 02/05/2019   06:07:22  ( -70.67, -96.41)   50.20                71
 02/05/2019   06:58:07   (  70.10,  71.85) 02/05/2019   06:57:57  (  70.09,  71.81)    2.18                10
 02/05/2019   07:47:37   ( -70.00,-120.66) 02/05/2019   07:48:39  ( -69.99,-120.73)    2.84                62
 02/07/2019   22:25:09   ( -70.16,  20.18) 02/07/2019   22:24:06  ( -70.14,  20.19)    2.48                63
 02/07/2019   23:14:35   (  70.05,-172.35) 02/07/2019   23:14:49  (  70.04,-172.34)    1.08                14
 02/08/2019   00:04:13   ( -69.51,  -5.45) 02/08/2019   00:05:23  ( -69.52,  -4.25)   47.05                70