Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2020 5 16.  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   ( -70.24,  20.26) 05/16/2020   22:23:38  ( -70.23,  20.12)    5.20                73
 05/16/2020   23:14:19   (  70.07,-172.34) 05/16/2020   23:14:21  (  70.06,-172.32)    1.13                 2
 05/17/2020   00:03:50   ( -69.92,  -4.92) 05/17/2020   00:05:02  ( -69.92,  -4.78)    5.46                72
 05/19/2020   14:41:24   ( -70.16, 136.02) 05/19/2020   14:40:32  ( -70.18, 135.96)    3.09                52
 05/19/2020   15:30:51   (  70.05, -56.50) 05/19/2020   15:31:15  (  70.02, -56.48)    3.22                24
 05/19/2020   16:20:36   ( -69.13, 109.89) 05/19/2020   16:21:42  ( -69.13, 112.13)   88.96                66
 05/22/2020   06:57:57   ( -70.14,-108.15) 05/22/2020   06:57:26  ( -70.14,-108.20)    1.83                31
 05/22/2020   07:47:24   (  70.02,  59.33) 05/22/2020   07:48:10  (  70.04,  59.27)    2.72                46
 05/24/2020   22:24:55   (  70.47,-159.44) 05/24/2020   22:23:43  (  70.52,-160.34)   33.74                72
 05/24/2020   23:14:30   ( -70.10,   7.66) 05/24/2020   23:14:19  ( -70.10,   7.64)    0.79                11
 05/25/2020   00:03:57   (  69.99, 175.14) 05/25/2020   00:05:03  (  70.00, 175.10)    2.02                66
 05/27/2020   14:41:35   (  70.15, -44.05) 05/27/2020   14:40:31  (  70.17, -44.01)    2.69                64
 05/27/2020   15:31:05   ( -70.06, 123.45) 05/27/2020   15:31:13  ( -70.06, 123.47)    0.97                 8
 05/27/2020   16:20:39   (  69.55, -69.60) 05/27/2020   16:21:49  (  69.54, -68.44)   45.04                70