Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
11979 (1995 SS5)
Classification: Main-belt Asteroid          SPK-ID: 2011979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1693981433198283 4.9163e-08  
a 2.559278478675493 1.0702e-08 au
q 2.12574145614947 1.2906e-07 au
i 13.37467659464346 4.6974e-06 deg
node 207.4906702420747 2.1118e-05 deg
peri 91.60949942501558 2.759e-05 deg
M 80.29772919218748 1.4969e-05 deg
tp 2458666.938815986279
(2019-Jul-02.43881599)
6.2889e-05 TDB
period 1495.459802574627
4.09
9.3805e-06
2.568e-08
d
yr
n .2407286370253573 1.51e-09 deg/d
Q 2.992815501201516 1.2515e-08 au
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      10212 days (27.96 yr)  
   first obs. used      1991-11-13  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4737  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:34:24  

Additional Information
 Earth MOID = 1.16157 au 
 Jupiter MOID = 2.32453 au 
 T_jup = 3.378 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO492886  
diameter diameter 2.411 km 0.326 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.304   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11979 (1995 SS5)          Discovered 1995-Sep-25 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1909-Jul-14 11:08 < 00:01 Amphi 0.0158976910657194 0.0158933754915442 0.0159020212557755 7.59203855741451 7.59203850978451 2418501.963725967 0.969259232487954 814.718159044751 54.6479468994377 -75.138330772721 42062.653958093 T 24 CATAB v2.0f-lin.ifort 2019-Nov-07 03:34:30 2019-Nov-07 03:34
1913-Aug-16 01:03 < 00:01 Amphi 0.0380831129370805 0.0380687955429318 0.0380974312965167 7.73011375975518 7.73011374022731 2419995.544002262 0.961337483201579 775.592652652093 53.8882092097309 -23.0692509079893 41966.3418545369 T 24 CATAB v2.0f-lin.ifort 2019-Nov-07 03:34:30 2019-Nov-07 03:34
2065-Jun-29 17:33 00:01 Psych 0.0392631978731911 0.0392534606220038 0.0392729354316089 4.74837500638878 4.7483749414921 2475466.230957981 1.17652638984101 515.621133659435 60.1948411920084 19.9084221967878 34886.5547443165 T 24 CATAB v2.0f-lin.ifort 2019-Nov-07 03:34:30 2019-Nov-07 03:34

Alternate Designations
 1995 SS5 = 1995 UZ7 = 1998 HK99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-25 03:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin