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
JPL Small-Body Database Browser
Search: [ help ]  
85804 (1998 WQ5)
Classification: Amor [NEO]          SPK-ID: 2085804
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 303 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3543065664441116 3.9854e-08  
a 1.72124112289643 4.7151e-09 au
q 1.111394090620589 6.9361e-08 au
i 27.66415241715992 4.7251e-06 deg
node 285.7492655329644 8.2215e-06 deg
peri 269.7933758253108 1.0965e-05 deg
M 92.92196514747856 1.2801e-05 deg
tp 2458787.599401598285
(2019-Oct-31.09940160)
2.8618e-05 TDB
period 824.8234451668529
2.26
3.3892e-06
9.279e-09
d
yr
n .4364570407272745 1.7934e-09 deg/d
Q 2.331088155172271 6.3857e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1670  
   data-arc span      11215 days (30.70 yr)  
   first obs. used      1989-11-25  
   last obs. used      2020-08-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39772  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-10 06:09:58  

Additional Information
 Earth MOID = .372411 au 
 Jupiter MOID = 3.12575 au 
 T_jup = 3.976 
[ 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 15.4   n/a MPO468828  
diameter diameter 2.272 km 0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 3.0089 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Oey, J. (2006) Minor Planet Bull. 33, 96-99.]
geometric albedo albedo 0.167   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

85804 (1998 WQ5)          Discovered 1998-Nov-19 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-11 17:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin