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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 98 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03728769805007506 1.4844e-08  
a 3.04517961905485 7.8969e-09 au
q 2.93163188091129 4.6073e-08 au
i 3.881689579499641 3.2495e-07 deg
node 268.5355684732809 5.4059e-06 deg
peri 110.4552452884967 2.8028e-05 deg
M 22.05183297773054 2.4898e-05 deg
tp 2459277.605985275398
(2021-Mar-04.10598528)
0.00013434 TDB
period 1940.965421971095
5.31
7.5501e-06
2.067e-08
d
yr
n .1854747106387973 7.2147e-10 deg/d
Q 3.15872735719841 8.1914e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3724  
   data-arc span      43072 days (117.92 yr)  
   first obs. used      1903-08-24  
   last obs. used      2021-07-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44142  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:42:56  

Additional Information
 Earth MOID = 1.93545 au 
 Jupiter MOID = 2.0483 au 
 T_jup = 3.234 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.17   n/a E2021B10 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. 2020-October); 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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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