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

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1959484193798784 1.1606e-07  
a 2.58520615802257 1.8327e-08 AU
q 2.07863909758692 2.9893e-07 AU
i 12.29449033358742 7.5847e-06 deg
node 313.381998728548 4.4625e-05 deg
peri 74.75969275816831 4.8222e-05 deg
M 185.0226300073707 1.7161e-05 deg
tp 2457738.439203757122
(2016-Dec-15.93920376)
7.3485e-05 JED
period 1518.242692547926
4.16
1.6145e-05
4.42e-08
d
yr
n .2371162408796748 2.5215e-09 deg/d
Q 3.091773218458221 2.1919e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      16300 days (44.63 yr)  
   first obs. used      1970-07-30  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47809  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:12:23  

Additional Information
 Earth MOID = 1.12099 AU 
 T_jup = 3.363 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0 mag n/a MPO256885  
diameter diameter 10.64 km 0.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 4.42 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.1876   0.025 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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