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2320 Blarney (1979 QJ)
Classification: Main-belt Asteroid          SPK-ID: 2002320
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 74 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1328934567079018 1.7125e-08  
a 3.166923398529418 1.461e-08 au
q 2.746060000969707 5.5817e-08 au
i 11.49098772634259 4.6012e-07 deg
node 118.0840103814982 1.4425e-06 deg
peri 261.0070996703001 6.7574e-06 deg
M 111.9514392549696 9.4716e-06 deg
tp 2458560.349711485282
(2019-Mar-17.84971149)
5.2083e-05 TDB
period 2058.518455849763
5.64
1.4245e-05
3.9e-08
d
yr
n .1748830567814321 1.2102e-09 deg/d
Q 3.587786796089128 1.6551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3397  
   data-arc span      28917 days (79.17 yr)  
   first obs. used      1942-01-21  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:09:52  

Additional Information
 Earth MOID = 1.77635 au 
 Jupiter MOID = 2.0095 au 
 T_jup = 3.158 
[ 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 10.62   n/a E2021B10  
diameter diameter 35.739 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.98689 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.096   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2320 Blarney (1979 QJ)          Discovered 1979-Aug-29 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1979 QJ = 1929 WF1 = 1931 DP = 1942 CE = 1950 NF1 = 1951 VG = 1955 ME = 1968 UE3 = 1972 LN = 1975 AQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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