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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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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 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1327429087237222 3.3968e-08  
a 3.166927491187957 1.5873e-08 au
q 2.746540324290547 1.0954e-07 au
i 11.49100975270255 4.285e-06 deg
node 118.0842098825899 1.9128e-05 deg
peri 261.004557254102 2.4883e-05 deg
M 76.99479388020113 1.6205e-05 deg
tp 2458560.234690430192
(2019-Mar-17.73469043)
9.2229e-05 TDB
period 2058.522446228499
5.64
1.5476e-05
4.237e-08
d
yr
n .1748827177763208 1.3148e-09 deg/d
Q 3.587314658085366 1.798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2963  
   data-arc span      28581 days (78.25 yr)  
   first obs. used      1942-01-21  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:38:16  

Additional Information
 Earth MOID = 1.77819 au 
 Jupiter MOID = 2.00909 au 
 T_jup = 3.159 
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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 10.5   n/a MPO337266  
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 5.097 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Bennefeld, C.; Aguilar, V.; Cooper, T.; Hupp, W.; et al. (2009) Minor Planet Bull. 36, 123-124.]
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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1908-May-20 13:03 00:02 Jupiter 1.99032680785514 1.99032636709762 1.99032724861345 3.89693912291585 3.78615839548745 2418082.043431771 2.19363949298145 148.833170005553 17.3339911213785 88.2067237764513 3555452.39692872 T 65 CATAB v2.0f-lin.ifort 2020-May-20 01:38:29 2020-May-20 01:38

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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