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1031 Arctica (A924 LC)
Classification: Main-belt Asteroid          SPK-ID: 2001031
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05676499836339881 3.6467e-08  
a 3.051438920186484 1.3694e-08 au
q 2.878223994876087 1.1015e-07 au
i 17.61616140893441 4.4249e-06 deg
node 218.8742618426902 1.3305e-05 deg
peri 309.0818036602072 4.1859e-05 deg
M 103.0367915214955 3.8667e-05 deg
tp 2458443.256162187885
(2018-Nov-20.75616219)
0.00020981 TDB
period 1946.95291507122
5.33
1.3106e-05
3.588e-08
d
yr
n .1849043175175251 1.2447e-09 deg/d
Q 3.224653845496882 1.4471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2554  
   data-arc span      35074 days (96.03 yr)  
   first obs. used      1924-06-06  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45207  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:25:11  

Additional Information
 Earth MOID = 1.90576 au 
 Jupiter MOID = 1.81011 au 
 T_jup = 3.163 
[ 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 9.5   n/a MPO473776 IRAS observations used: 21
diameter diameter 75.400 km 0.497 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 24.904 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Polakis, T. (2018) Minor Planet Bull. 45, 269-273.]
geometric albedo albedo 0.035   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.680   0.007 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.84, mean=7.85, max.=7.86) deg.
U-B UB 0.325   0.035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.84, mean=7.85, max.=7.86) deg.
Tholen spectral type spec_T CX:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1031 Arctica (A924 LC)          Discovered 1924-Jun-06 by Belyavskij, S. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A924 LC = A910 VB = A913 JA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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