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JPL Small-Body Database Browser
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2044 Wirt (1950 VE)
Classification: Mars-crossing Asteroid          SPK-ID: 2002044
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3452053140960383 4.8868e-08  
a 2.379364378165338 5.5155e-09 au
q 1.557995150651848 1.1708e-07 au
i 23.97169763014743 7.9648e-06 deg
node 53.62856360805282 9.5634e-06 deg
peri 50.46668832291055 1.4986e-05 deg
M 321.6752517053794 9.1278e-06 deg
tp 2459143.214030127990
(2020-Oct-20.71403013)
3.4209e-05 TDB
period 1340.57112263638
3.67
4.6613e-06
1.276e-08
d
yr
n .2685422607731699 9.3375e-10 deg/d
Q 3.200733605678828 7.4195e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1306  
   data-arc span      25178 days (68.93 yr)  
   first obs. used      1950-11-22  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42125  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:11:37  

Additional Information
 Earth MOID = .650099 au 
 Jupiter MOID = 2.33621 au 
 T_jup = 3.347 
[ 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 13.2   n/a MPO492774  
diameter diameter 6.66 km 0.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
rotation period rot_per 3.6898 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pray, D.; Pravec, P.; Kusnirak, P.; Cooney, W.; et al. (2006) CBET 353.]
[Pravec, P.; Scheirich, P.; Vokrouhlicky, D.; Harris, A.W.; et al. (2012) Icarus 218, 125-143. See also supplemental on-line material.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.1907   0.038 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

2044 Wirt           Discovered 1950 Nov. 8 by C. A. Wirtanen at the Lick Observatory.
Named in honor of Carl A. Wirtanen, known for his discovery of several comets and minor planets and for his contribution to the Shane-Wirtanen survey of galaxies. He contributed to astrometric and other programs of the Lick Observatory for 33 years, including the proper-motion program with respect to galaxies. Name proposed by A. R. Klemola.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5688Last Updated: 2006-03-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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