Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 5 14.  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)
 05/16/2020   22:24:51   ( -70.28,  20.29) 05/16/2020   22:23:39  ( -70.29,  20.02)   10.12                72
 05/16/2020   23:14:20   (  70.06,-172.38) 05/16/2020   23:14:21  (  70.07,-172.34)    2.71                 1
 05/17/2020   00:03:50   ( -69.96,  -4.89) 05/17/2020   00:05:03  ( -69.98,  -4.87)    2.45                73
 05/19/2020   14:41:26   ( -70.14, 135.95) 05/19/2020   14:40:31  ( -70.14, 136.03)    2.88                55
 05/19/2020   15:30:53   (  70.02, -56.57) 05/19/2020   15:31:15  (  70.03, -56.50)    2.88                22
 05/19/2020   16:20:36   ( -69.21, 109.97) 05/19/2020   16:21:43  ( -69.20, 112.04)   81.96                67
 05/22/2020   06:57:59   ( -70.16,-108.15) 05/22/2020   06:57:26  ( -70.15,-108.22)    2.61                33
 05/22/2020   07:47:26   (  70.05,  59.33) 05/22/2020   07:48:10  (  70.05,  59.25)    2.96                44
 05/24/2020   22:24:57   (  70.61,-159.28) 05/24/2020   22:23:47  (  70.69,-160.62)   50.30                70
 05/24/2020   23:14:33   ( -70.13,   7.66) 05/24/2020   23:14:19  ( -70.12,   7.62)    2.71                14
 05/25/2020   00:04:00   (  70.02, 175.14) 05/25/2020   00:05:03  (  70.01, 175.08)    2.42                63
 05/27/2020   14:41:39   (  70.20, -44.03) 05/27/2020   14:40:31  (  70.19, -44.03)    1.18                68
 05/27/2020   15:31:10   ( -70.05, 123.40) 05/27/2020   15:31:13  ( -70.08, 123.44)    3.38                 3
 05/27/2020   16:20:41   (  69.72, -69.43) 05/27/2020   16:21:52  (  69.72, -68.70)   28.01                71