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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05721113759730615 3.4983e-08  
a 3.051765771364012 1.3668e-08 au
q 2.877170779903756 1.0475e-07 au
i 17.60796765774708 4.1254e-06 deg
node 218.7584327118879 1.3237e-05 deg
peri 309.6025239440155 3.9898e-05 deg
M 139.5346653197423 3.7145e-05 deg
tp 2458445.747017899327
(2018-Nov-23.24701790)
0.00020164 TDB
period 1947.265741696654
5.33
1.3082e-05
3.582e-08
d
yr
n .1848746127923618 1.242e-09 deg/d
Q 3.226360762824267 1.445e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2923  
   data-arc span      35263 days (96.54 yr)  
   first obs. used      1924-06-06  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42767  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:51:54  

Additional Information
 Earth MOID = 1.90358 au 
 Jupiter MOID = 1.80646 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 9.57   n/a E2021B10 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. 2020-October); Warner et al., 2009 Published Reference List:
[Polakis, T. (2018) Minor Planet Bull. 45, 269-273.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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