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1100 Arnica (1928 SD)
Classification: Main-belt Asteroid          SPK-ID: 2001100
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06932740743566969 4.3039e-08  
a 2.897836742131195 1.1814e-08 au
q 2.696937233627412 1.2352e-07 au
i 1.03463816797624 3.7059e-06 deg
node 304.0902294805236 0.00025151 deg
peri 24.09584440242176 0.00025368 deg
M 167.1267098683515 3.4911e-05 deg
tp 2457764.025585573158
(2017-Jan-10.52558557)
0.00017401 TDB
period 1801.81126901181
4.93
1.1019e-05
3.017e-08
d
yr
n .1997989501960654 1.2219e-09 deg/d
Q 3.098736250634978 1.2633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2737  
   data-arc span      36972 days (101.22 yr)  
   first obs. used      1918-09-16  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43127  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:53:41  

Additional Information
 Earth MOID = 1.68455 au 
 Jupiter MOID = 2.13586 au 
 T_jup = 3.284 
[ 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 10.9   n/a MPO439073  
diameter diameter 16.894 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.535 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Slivan, S.M.; Binzel, R.P.; Boroumand, S.C.; Pan M.W.; et al. (2008) Icarus 195, 226-276.]
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.246   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1100 Arnica (1928 SD)          Discovered 1928-Sep-22 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1928 SD = 1950 BU = 1976 MK = 1979 HE = A904 XA = A918 RD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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