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JPL Small-Body Database Browser
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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


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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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
2043-Feb-21 14:52 00:02 Thisb 0.0487498186764328 0.0487485268185851 0.0487511105956616 1.99705550101033 1.9970554309759 2467302.119477018 1.68195636197957 129.335433988525 41.2153255132025 66.2442967840837 163176.24691717 T 36 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:48 2020-Feb-22 15:45
2104-Nov-28 03:39 00:07 Iris 0.011694732179719 0.0116914465914387 0.0116980189424757 2.61567283218336 2.61567264425195 2489861.651826696 6.58068674593209 249.165044030281 30.5978595207086 -49.4466050892848 43624.5226476504 T 36 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:48 2020-Feb-22 15:45
2112-Mar-31 15:38 00:04 Thisb 0.0431777973759055 0.0431736218632524 0.0431819737235523 2.01276750297816 2.01276742452315 2492542.151643466 3.58800068183742 369.26428772624 42.0389566763992 56.2827628743929 127892.793851761 T 36 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:48 2020-Feb-22 15:45
2181-May-17 10:20 00:07 Thisb 0.0277094580571754 0.0277080164503903 0.0277109031967421 1.92600894696072 1.92600881920262 2517790.930304261 6.65472361687816 604.359901903644 41.0788015941275 -84.4120367246961 100192.982042233 T 36 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:48 2020-Feb-22 15:45
2199-Jul-16 13:29 < 00:01 Psych 0.0369274451194605 0.0369111730045634 0.0369437173951969 2.5318297651517 2.53182963574123 2524425.062131271 0.785829288454393 819.205404326676 39.7175059433917 8.64718073754067 21897.1149251214 T 36 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:48 2020-Feb-22 15:45

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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