Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 2 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)
 02/18/2020   23:14:55   ( -70.09,   7.67) 02/18/2020   23:14:12  ( -70.08,   7.70)    1.44                43
 02/19/2020   00:04:22   (  69.98, 175.17) 02/19/2020   00:04:56  (  69.96, 175.19)    2.72                34
 02/21/2020   14:41:46   (  70.60, -43.33) 02/21/2020   14:40:36  (  70.69, -44.81)   55.27                70
 02/21/2020   15:31:24   ( -70.06, 123.50) 02/21/2020   15:31:08  ( -70.07, 123.48)    2.04                16
 02/21/2020   16:20:51   (  69.95, -69.00) 02/21/2020   16:21:52  (  69.96, -69.03)    1.36                61
 02/24/2020   06:58:22   (  70.13,  71.85) 02/24/2020   06:57:20  (  70.11,  71.88)    2.54                62
 02/24/2020   07:47:52   ( -70.02,-120.67) 02/24/2020   07:48:02  ( -70.02,-120.66)    0.65                10
 02/24/2020   08:37:28   (  69.41,  46.15) 02/24/2020   08:38:37  (  69.42,  47.52)   53.72                69
 02/26/2020   23:14:51   (  70.08,-172.33) 02/26/2020   23:14:16  (  70.11,-172.35)    2.49                35
 02/27/2020   00:04:21   ( -69.98,  -4.85) 02/27/2020   00:04:57  ( -69.96,  -4.81)    2.66                36
 02/29/2020   14:41:46   ( -70.53, 136.56) 02/29/2020   14:40:35  ( -70.58, 135.35)   44.89                71
 02/29/2020   15:31:20   (  70.04, -56.52) 02/29/2020   15:31:11  (  70.05, -56.51)    1.92                 9
 02/29/2020   16:20:50   ( -69.94, 110.97) 02/29/2020   16:21:53  ( -69.96, 110.95)    2.61                63