Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 4 28.  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)
 04/28/2019   22:24:49   ( -70.17,  20.12) 04/28/2019   22:23:41  ( -70.19,  20.20)    3.38                68
 04/28/2019   23:14:16   (  70.06,-172.39) 04/28/2019   23:14:25  (  70.08,-172.32)    3.08                 9
 04/29/2019   00:03:51   ( -69.68,  -5.28) 04/29/2019   00:05:02  ( -69.72,  -4.47)   31.74                71
 05/01/2019   14:41:18   ( -70.20, 136.03) 05/01/2019   14:40:38  ( -70.19, 135.96)    2.95                40
 05/01/2019   15:30:46   (  70.03, -56.56) 05/01/2019   15:31:21  (  70.03, -56.49)    2.86                35
 05/04/2019   06:08:11   (  70.67,  84.97) 05/04/2019   06:07:01  (  70.72,  83.56)   52.00                70
 05/04/2019   06:57:49   ( -70.14,-108.18) 05/04/2019   06:57:34  ( -70.14,-108.20)    1.02                15
 05/04/2019   07:47:16   (  70.02,  59.30) 05/04/2019   07:48:18  (  70.04,  59.27)    2.16                62
 05/06/2019   22:24:50   (  70.20,-159.86) 05/06/2019   22:23:48  (  70.20,-159.85)    0.72                62
 05/06/2019   23:14:20   ( -70.10,   7.64) 05/06/2019   23:14:30  ( -70.10,   7.63)    0.71                10
 05/07/2019   00:03:56   (  69.49, 174.43) 05/07/2019   00:05:05  (  69.52, 175.80)   53.47                69
 05/09/2019   14:41:20   (  70.18, -44.01) 05/09/2019   14:40:43  (  70.16, -44.02)    2.55                37
 05/09/2019   15:30:51   ( -70.04, 123.41) 05/09/2019   15:31:25  ( -70.05, 123.47)    2.72                34