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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 ]

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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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0697059586747619 4.2794e-08  
a 2.896928372529562 1.1646e-08 au
q 2.694995203110271 1.2296e-07 au
i 1.034758946661307 3.6944e-06 deg
node 304.0966559362235 0.00025099 deg
peri 24.11560614103658 0.00025314 deg
M 247.0546849028833 3.4806e-05 deg
tp 2459565.529058410270
(2021-Dec-17.02905841)
0.00017473 TDB
period 1800.964128992811
4.93
1.086e-05
2.973e-08
d
yr
n .1998929319049403 1.2053e-09 deg/d
Q 3.098861541948853 1.2457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2785  
   data-arc span      37003 days (101.31 yr)  
   first obs. used      1918-09-16  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4291  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:50:42  

Additional Information
 Earth MOID = 1.6835 au 
 Jupiter MOID = 2.13748 au 
 T_jup = 3.285 
[ 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-August); 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

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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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