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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08137750755947672 5.5764e-08  
a 5.126131467312866 9.7633e-08 au
q 4.708979665080742 3.2243e-07 au
i 20.05731812175529 6.0019e-06 deg
node 343.36646603 1.3975e-05 deg
peri 11.27154128336037 4.4116e-05 deg
M 257.7990368731211 4.7508e-05 deg
tp 2460403.970709796717
(2024-Apr-03.47070980)
0.00058096 TDB
period 4239.191513185194
11.61
0.00012111
3.316e-07
d
yr
n .08492185334875503 2.4261e-09 deg/d
Q 5.54328326954499 1.0558e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1324  
   data-arc span      24606 days (67.37 yr)  
   first obs. used      1953-10-01  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:36:34  

Additional Information
 Earth MOID = 3.70354 au 
 Jupiter MOID = .107353 au 
 T_jup = 2.874 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457157.5 (2015-May-15.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08184489360796832 5.5616e-08  
q 4.70551219700865 3.209e-07 au
tp 2456181.311269462033
(2012-Sep-10.81126946)
0.00050797 TDB
node 343.36139236243 1.3978e-05 deg
peri 12.3213084895801 4.3889e-05 deg
i 20.05790380335539 6.0012e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1324  
   data-arc span      24606 days (67.37 yr)  
   first obs. used      1953-10-01  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:36:34  

Additional Information
 Jupiter MOID = .107353 au 
 T_jup = 2.874 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.093116405608903E-15 -1.715795562220157E-14 -2.08533670886978E-12 -1.159768840710612E-15 -2.57976727328784E-13 3.641886961419187E-15
q -1.715795562220157E-14 1.029752340598168E-13 3.346849662221235E-11 7.652449233149825E-15 3.359300900352664E-12 -1.481399504189006E-14
tp -2.08533670886978E-12 3.346849662221235E-11 2.580346742687311E-7 -7.500625712703299E-11 2.115377070470124E-8 1.748750418013554E-11
node -1.159768840710612E-15 7.652449233149825E-15 -7.500625712703299E-11 1.953956364459588E-10 -1.891936450904895E-10 -2.981803318775451E-12
peri -2.57976727328784E-13 3.359300900352664E-12 2.115377070470124E-8 -1.891936450904895E-10 1.926268231244554E-9 4.144252517357335E-12
i 3.641886961419187E-15 -1.481399504189006E-14 1.748750418013554E-11 -2.981803318775451E-12 4.144252517357335E-12 3.60146492701859E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.07   n/a E2021B10  
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. 2020-October); 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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 2021-Apr-18 13:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin