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 ]  
30506 (2000 RO85)
Classification: Jupiter Trojan          SPK-ID: 2030506
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08109484228231705 5.5881e-08  
a 5.126507757735894 9.8131e-08 au
q 4.710774419663227 3.2269e-07 au
i 20.05709215635445 6.0202e-06 deg
node 343.3648647493217 1.402e-05 deg
peri 11.29267313668737 4.4288e-05 deg
M 240.7646094480398 4.7367e-05 deg
tp 2460404.714757880839
(2024-Apr-04.21475788)
0.000583 TDB
period 4239.658296894735
11.61
0.00012173
3.333e-07
d
yr
n .08491250350616129 2.4381e-09 deg/d
Q 5.542241095808561 1.0609e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1305  
   data-arc span      24402 days (66.81 yr)  
   first obs. used      1953-10-01  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51314  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:05:50  

Additional Information
 Earth MOID = 3.70708 au 
 Jupiter MOID = .107031 au 
 T_jup = 2.874 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.0   n/a MPO435975  
diameter diameter 34.356 km 0.698 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 7.985 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.060   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

30506 (2000 RO85)          Discovered 2000-Sep-02 by LONEOS at Anderson Mesa
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-28 15:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin