Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 4 20.  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)
 04/22/2020   22:24:56   (  70.24,-159.80) 04/22/2020   22:23:43  (  70.28,-159.99)    8.27                73
 04/22/2020   23:14:27   ( -70.09,   7.60) 04/22/2020   23:14:23  ( -70.09,   7.63)    1.03                 4
 04/23/2020   00:03:54   (  69.97, 175.09) 04/23/2020   00:05:07  (  69.97, 175.12)    0.98                73
 04/25/2020   14:41:24   (  70.18, -44.02) 04/25/2020   14:40:35  (  70.17, -44.04)    0.88                49
 04/25/2020   15:30:54   ( -70.08, 123.47) 04/25/2020   15:31:17  ( -70.08, 123.42)    1.86                23
 04/28/2020   06:57:53   (  70.10,  71.75) 04/28/2020   06:57:29  (  70.12,  71.82)    2.75                24
 04/28/2020   07:47:23   ( -70.01,-120.75) 04/28/2020   07:48:11  ( -70.02,-120.72)    1.78                48
 04/30/2020   22:24:54   ( -70.21,  20.13) 04/30/2020   22:23:40  ( -70.22,  20.12)    1.23                74
 04/30/2020   23:14:21   (  70.08,-172.40) 04/30/2020   23:14:24  (  70.11,-172.41)    3.37                 3
 05/01/2020   00:03:52   ( -69.93,  -4.98) 05/01/2020   00:05:05  ( -69.96,  -4.86)    5.34                73
 05/03/2020   14:41:22   ( -70.18, 135.98) 05/03/2020   14:40:34  ( -70.16, 135.98)    2.66                48
 05/03/2020   15:30:49   (  70.06, -56.55) 05/03/2020   15:31:18  (  70.06, -56.56)    0.13                29