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514 Armida (A903 QC)
Classification: Main-belt Asteroid          SPK-ID: 2000514
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 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03770744378539454 3.1251e-08  
a 3.046960722545009 1.2584e-08 au
q 2.932067622383338 9.2957e-08 au
i 3.881844850878525 3.2009e-06 deg
node 268.546164818331 5.3005e-05 deg
peri 109.6494719077541 7.1044e-05 deg
M 309.3897171222839 4.8328e-05 deg
tp 2459273.608347638278
(2021-Feb-28.10834764)
0.00026134 TDB
period 1942.668555861208
5.32
1.2035e-05
3.295e-08
d
yr
n .1853121053068199 1.148e-09 deg/d
Q 3.161853822706681 1.3059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3032  
   data-arc span      42614 days (116.67 yr)  
   first obs. used      1903-08-24  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:07:23  

Additional Information
 Earth MOID = 1.93648 au 
 Jupiter MOID = 2.05003 au 
 T_jup = 3.234 
[ 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 9.2   n/a MPO492755 IRAS observations used: 15
diameter diameter 120.093 km 0.790 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 21.851 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Koff, R.A. (2006) Minor Planet Bull. 33, 31-33.]
[Stephens, R.D. (2010) Minor Planet Bull. 37, 28-29.]
geometric albedo albedo 0.030   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.675   0.062 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=2.31, mean=5.06, max.=7.81) deg.
U-B UB 0.255   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=2.31, mean=5.06, max.=7.81) deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

514 Armida (A903 QC)          Discovered 1903-Aug-24 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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