Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2021 12 25.  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)
 12/27/2021   06:09:13   ( -70.19, -95.68) 12/27/2021   06:08:02  ( -70.19, -95.66)    0.76                71
 12/27/2021   06:58:40   (  70.08,  71.81) 12/27/2021   06:58:46  (  70.07,  71.83)    2.11                 6
 12/27/2021   07:48:13   ( -69.81,-120.94) 12/27/2021   07:49:25  ( -69.83,-120.49)   17.35                72
 12/29/2021   22:25:41   ( -70.17,  20.18) 12/29/2021   22:24:53  ( -70.15,  20.18)    2.75                48
 12/29/2021   23:15:09   (  70.01,-172.41) 12/29/2021   23:15:37  (  70.03,-172.33)    3.55                28
 01/01/2022   13:52:25   (  71.02, -30.30) 01/01/2022   13:51:18  (  71.04, -32.80)   90.29                67
 01/01/2022   14:42:10   ( -70.09, 135.95) 01/01/2022   14:41:44  ( -70.11, 136.01)    3.45                26
 01/01/2022   15:31:37   (  69.98, -56.56) 01/01/2022   15:32:28  (  70.00, -56.50)    2.96                51
 01/04/2022   06:09:07   (  70.21,  84.38) 01/04/2022   06:07:54  (  70.22,  84.31)    2.88                73
 01/04/2022   06:58:37   ( -70.11,-108.14) 01/04/2022   06:58:35  ( -70.08,-108.15)    3.25                 2
 01/04/2022   07:48:04   (  69.94,  59.27) 01/04/2022   07:49:17  (  69.92,  59.40)    5.71                73
 01/06/2022   22:25:34   (  70.17,-159.81) 01/06/2022   22:24:43  (  70.15,-159.79)    2.10                51
 01/06/2022   23:15:04   ( -70.06,   7.68) 01/06/2022   23:15:25  ( -70.05,   7.67)    1.10                21