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JPL Small-Body Database Browser
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4805 Asteropaios (1990 VH7)
Classification: Jupiter Trojan          SPK-ID: 2004805
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0906518889335588 5.4634e-08  
a 5.205363191385085 8.9331e-08 au
q 4.733487185500809 2.865e-07 au
i 12.01466091781973 4.8535e-06 deg
node 278.3976997957711 2.576e-05 deg
peri 89.80681121742457 4.0058e-05 deg
M 212.0665591933432 3.3277e-05 deg
tp 2460783.038176540385
(2025-Apr-17.53817654)
0.00043086 TDB
period 4337.854511159742
11.88
0.00011167
3.057e-07
d
yr
n .08299033521614181 2.1363e-09 deg/d
Q 5.677239197269361 9.7429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1813  
   data-arc span      24223 days (66.32 yr)  
   first obs. used      1953-12-31  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46964  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:12:48  

Additional Information
 Earth MOID = 3.7602 au 
 Jupiter MOID = .0118845 au 
 T_jup = 2.948 
[ 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 10.1   n/a MPO473832  
diameter diameter 57.647 km 0.737 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 12.372 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
geometric albedo albedo 0.058   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

4805 Asteropaios (1990 VH7)          Discovered 1990-Nov-13 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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