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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936223142682854 4.6813e-08  
a 2.587842061843076 1.2638e-08 au
q 2.086778092868208 1.2595e-07 au
i 12.30249397233224 4.5758e-06 deg
node 313.2673734619642 1.895e-05 deg
peri 74.64968774206361 2.172e-05 deg
M 299.1201442490789 1.1769e-05 deg
tp 2459257.643879651309
(2021-Feb-12.14387965)
5.0606e-05 TDB
period 1520.565309044293
4.16
1.1139e-05
3.05e-08
d
yr
n .2367540531529471 1.7344e-09 deg/d
Q 3.088906030817944 1.5085e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1756  
   data-arc span      18266 days (50.01 yr)  
   first obs. used      1970-07-30  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37951  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:58:47  

Additional Information
 Earth MOID = 1.12906 au 
 Jupiter MOID = 2.54303 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 12.1   n/a MPO384778  
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. 2019-August); 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.]
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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