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JPL Small-Body Database Browser
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680 Genoveva (A909 HF)
Classification: Main-belt Asteroid          SPK-ID: 2000680
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2945451840072482 4.2364e-08  
a 3.14397429038985 1.4472e-08 au
q 2.217931804512915 1.3381e-07 au
i 17.49770745697936 4.7794e-06 deg
node 38.0107819501437 1.5111e-05 deg
peri 245.8507707547533 1.6474e-05 deg
M 270.702799125428 1.0453e-05 deg
tp 2459505.570787923082
(2021-Oct-18.07078792)
6.1277e-05 TDB
period 2036.183462320439
5.57
1.4059e-05
3.849e-08
d
yr
n .1768013573736343 1.2207e-09 deg/d
Q 4.070016776266787 1.8734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2372  
   data-arc span      40403 days (110.62 yr)  
   first obs. used      1909-04-22  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46068  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:46:46  

Additional Information
 Earth MOID = 1.26669 au 
 Jupiter MOID = 1.46445 au 
 T_jup = 3.072 
[ 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 9.5   n/a MPO502159 IRAS observations used: 26
diameter diameter 83.92 km 1.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 26
rotation period rot_per 11.089 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.0474   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 26
B-V BV 0.689   0.013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.96, mean=6.78, max.=7.61) deg.
U-B UB 0.271   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.96, mean=6.78, max.=7.61) deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

680 Genoveva (A909 HF)          Discovered 1909-Apr-22 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A909 HF = 1932 KH = 1933 UE = 1933 VG = 1954 HC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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