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531 Zerlina (A904 GC)
Classification: Main-belt Asteroid          SPK-ID: 2000531
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1973043918587429 3.5096e-08  
a 2.785457048353371 1.1286e-08 au
q 2.23587413937936 1.0088e-07 au
i 33.99355094721577 4.5194e-06 deg
node 197.7058619098365 6.3468e-06 deg
peri 57.93807943628182 1.1837e-05 deg
M 315.8022175822739 1.0913e-05 deg
tp 2459208.968818359393
(2020-Dec-25.46881836)
5.1964e-05 TDB
period 1698.021269485283
4.65
1.032e-05
2.825e-08
d
yr
n .2120114785777247 1.2885e-09 deg/d
Q 3.335039957327381 1.3513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2344  
   data-arc span      42486 days (116.32 yr)  
   first obs. used      1904-04-12  
   last obs. used      2020-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:28:35  

Additional Information
 Earth MOID = 1.3392 au 
 Jupiter MOID = 1.8962 au 
 T_jup = 3.057 
[ 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 12.0   n/a MPO250196  
diameter diameter 17.804 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.706 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Brinsfield, J.W. (2008) Minor Planet Bull. 35, 86-87.]
[Pilcher, F.; Brinsfield, J.W. (2011) Minor Planet Bull. 38, 206.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.101   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B B   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)

531 Zerlina (A904 GC)          Discovered 1904-Apr-12 by Wolf, M. 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
1975-Dec-20 12:53 < 00:01 Jupiter 1.89167239503811 1.89167204232306 1.89167274775402 9.07882991246242 9.02937566380321 2442767.037060252 0.491755710520594 163.653444870344 15.9562475805765 -87.5153671632636 6285728.89192186 T 35 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:41 2020-Nov-13 04:28
2082-Dec-23 15:20 < 00:01 Jupiter 1.91878195122584 1.91878133354716 1.91878256890998 9.06599625640732 9.0171732213684 2481852.138620297 0.841741779201413 216.535700440517 20.1854152489101 83.8452222770752 6206098.7533918 T 35 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:41 2020-Nov-13 04:28
2106-Feb-10 09:58 00:01 Jupiter 1.98527020834217 1.98526909632516 1.98527132038772 9.06351307244061 9.01631644193365 2490300.915462803 1.20584152712613 395.28922288157 14.8445420718249 -82.2299190535383 6650658.44235984 T 35 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:41 2020-Nov-13 04:28

Alternate Designations
 A904 GC = 1955 HA 
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