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JPL Small-Body Database Browser
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344 Desiderata (A892 WA)
Classification: Main-belt Asteroid          SPK-ID: 2000344
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 90 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3137324923174503 3.7261e-08  
a 2.596625745807725 8.9304e-09 au
q 1.78197987895981 9.5496e-08 au
i 18.34518415181525 4.7873e-06 deg
node 48.02627984552331 9.215e-06 deg
peri 237.5813635262267 1.226e-05 deg
M 270.6663308806723 1.082e-05 deg
tp 2459379.749604115507
(2021-Jun-14.24960412)
4.7432e-05 TDB
period 1528.313555544352
4.18
7.8843e-06
2.159e-08
d
yr
n .2355537570768819 1.2152e-09 deg/d
Q 3.411271612655641 1.1732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2375  
   data-arc span      46461 days (127.20 yr)  
   first obs. used      1892-11-20  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47618  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:25:04  

Additional Information
 Earth MOID = .832467 au 
 Jupiter MOID = 1.96323 au 
 T_jup = 3.277 
[ 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 8.3   n/a MPO502156 IRAS observations used: 25
diameter diameter 124.181 km 2.516 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.747 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Barucci, M.A.; Fulchignoni, M.; Burchi, R.; D'Ambrosio, V. (1985) Icarus 61, 152-162.]
[Cunningham, C.J. (1986) in Asteroids, Comets, Meteors II. C.-I. Lagerkvist, B.A. Lindblad, M. Lundstedt, H. Rickman, eds. Uppsala, pp. 85-87.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Piironen, J.; Bowell, E.; Erikson, A.; Magnusson, P. (1994) Astron. Astrophys. Suppl. Ser. 106, 587-595.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2016) Minor Planet Bull. 43, 227-233.]
geometric albedo albedo 0.067   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.725   0.017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=5.29, mean=11.93, max.=23.90) deg.
U-B UB 0.382   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=5.29, mean=11.93, max.=23.90) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

344 Desiderata (A892 WA)          Discovered 1892-Nov-15 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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