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2993 Wendy (1970 PA)
Classification: Main-belt Asteroid          SPK-ID: 2002993
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1933139347587031 2.6985e-08  
a 2.586508301413163 9.77e-09 au
q 2.086500204380934 7.2522e-08 au
i 12.30391534656069 4.1578e-07 deg
node 313.268418296342 4.602e-06 deg
peri 74.74539575014532 6.4727e-06 deg
M 346.3912812987315 4.3296e-06 deg
tp 2459257.935972397976
(2021-Feb-12.43597240)
1.8381e-05 TDB
period 1519.389923266174
4.16
8.6088e-06
2.357e-08
d
yr
n .2369372038654316 1.3425e-09 deg/d
Q 3.086516398445391 1.1659e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2276  
   data-arc span      18457 days (50.53 yr)  
   first obs. used      1970-07-30  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35141  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:32:43  

Additional Information
 Earth MOID = 1.12766 au 
 Jupiter MOID = 2.54633 au 
 T_jup = 3.363 
[ 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 12.21   n/a E2021B10  
diameter diameter 11.209 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.456 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.169   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2993 Wendy (1970 PA)          Discovered 1970-Aug-04 by at Perth
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1970 PA = 1979 YJ2 = 1981 DG1 = A916 QA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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