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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09012356497009798 5.783e-08  
a 5.207409939070662 9.2729e-08 au
q 4.738099591100894 2.9859e-07 au
i 12.01474179106823 5.1461e-06 deg
node 278.3959512280926 2.615e-05 deg
peri 90.00603338285558 4.1683e-05 deg
M 178.6295350112702 3.3934e-05 deg
tp 2456446.816675989115
(2013-Jun-03.31667599)
0.00038023 TDB
period 4340.413227829324
11.88
0.00011594
3.174e-07
d
yr
n .08294141158998332 2.2154e-09 deg/d
Q 5.676720287040431 1.0109e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1621  
   data-arc span      23872 days (65.36 yr)  
   first obs. used      1953-12-31  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47883  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:42:31  

Additional Information
 Earth MOID = 3.76405 au 
 Jupiter MOID = .00912874 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 10.0   n/a MPO435744  
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-January); 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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