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JPL Small-Body Database Browser
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34956 (1327 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2034956
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2649866753756166 3.8691e-08  
a 3.078308034781029 1.6675e-08 au
q 2.262597422862356 1.2329e-07 au
i .6937203897264936 4.5413e-06 deg
node 12.5706985871081 0.00033003 deg
peri 296.1852608243562 0.00033009 deg
M 253.0553967228192 7.9463e-06 deg
tp 2459586.534135527644
(2022-Jan-07.03413553)
4.5826e-05 TDB
period 1972.724965308912
5.40
1.6029e-05
4.389e-08
d
yr
n .1824886927122287 1.4828e-09 deg/d
Q 3.894018646699702 2.1093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1091  
   data-arc span      17013 days (46.58 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53432  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 07:54:13  

Additional Information
 Earth MOID = 1.24808 au 
 Jupiter MOID = 1.39234 au 
 T_jup = 3.174 
[ 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 14.3   n/a MPO436009  
diameter diameter 7.446 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.45949 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.063   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34956 (1327 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1327 T-2 = 1999 JJ78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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