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JPL Small-Body Database Browser
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929 Algunde (A920 ED)
Classification: Main-belt Asteroid          SPK-ID: 2000929
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1131580980510287 3.1305e-08  
a 2.238859314329355 5.4514e-09 au
q 1.985514252516015 6.9943e-08 au
i 3.91329504469482 3.5525e-06 deg
node 231.38704362 5.7201e-05 deg
peri 22.87969287342573 6.0362e-05 deg
M 131.7022353171829 2.0555e-05 deg
tp 2458152.859596553402
(2018-Feb-03.35959655)
6.9599e-05 TDB
period 1223.597647015413
3.35
4.469e-06
1.224e-08
d
yr
n .2942143611326062 1.0746e-09 deg/d
Q 2.492204376142695 6.0683e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2900  
   data-arc span      36422 days (99.72 yr)  
   first obs. used      1920-03-10  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45904  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:14:31  

Additional Information
 Earth MOID = .971351 au 
 Jupiter MOID = 2.53676 au 
 T_jup = 3.625 
[ 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 11.6   n/a MPO416713  
diameter diameter 11.443 km 0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.31016 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Galad, A.; Kornos, L. (2008) Minor Planet Bull. 35, 78-81.]
[Oey, J. (2008) Minor Planet Bull. 35, 132-135.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Franco, L.; Marchini, A.; Baj, G.; Scarfi, G.; et al. (2019) Minor Planet Bull. 46, 85-86.]
geometric albedo albedo 0.272   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

929 Algunde (A920 ED)          Discovered 1920-Mar-10 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1958-May-11 18:08 < 00:01 Iris 0.0446992068820688 0.0446984191416795 0.044699994688163 6.66602820976858 6.6660281904753 2436335.255745272 0.167725041285217 155.649050961295 32.3442496251941 -81.5866290491611 204570.681900461 T 39 CATAB v2.0f-lin.ifort 2019-Dec-03 20:14:47 2019-Dec-03 20:14
2117-Jun-13 12:25 < 00:01 Hebe 0.0405187340828425 0.0405155203681689 0.0405219485260099 7.5816222743998 7.58162225416311 2494442.017099997 0.368526957826357 319.145316117883 30.7209209826628 -60.3233436230106 171653.407252337 T 39 CATAB v2.0f-lin.ifort 2019-Dec-03 20:14:47 2019-Dec-03 20:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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