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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06970595793706147 4.2346e-08  
a 2.896928372134356 1.1546e-08 au
q 2.694995204879679 1.2183e-07 au
i 1.034759039013645 3.6712e-06 deg
node 304.0966526709119 0.00025055 deg
peri 24.11560918546582 0.0002527 deg
M 247.0546853585757 3.4785e-05 deg
tp 2459565.529056014964
(2021-Dec-17.02905601)
0.00017462 TDB
period 1800.964128624273
4.93
1.0767e-05
2.948e-08
d
yr
n .199892931945845 1.195e-09 deg/d
Q 3.098861539389034 1.235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2831  
   data-arc span      37030 days (101.38 yr)  
   first obs. used      1918-09-16  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:45:36  

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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