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34217 (2000 QA78)
Classification: Main-belt Asteroid          SPK-ID: 2034217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1808460017002075 4.1554e-08  
a 2.476731328614842 1.1525e-08 au
q 2.028824370549205 1.0414e-07 au
i 6.108574206720143 4.6311e-06 deg
node 344.0831158001159 4.1649e-05 deg
peri 357.5040646688417 4.3649e-05 deg
M 284.9618947952151 1.6259e-05 deg
tp 2458897.253692566019
(2020-Feb-17.75369257)
6.5464e-05 TDB
period 1423.694388767091
3.90
9.9377e-06
2.721e-08
d
yr
n .2528632569183316 1.765e-09 deg/d
Q 2.924638286680479 1.361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1384  
   data-arc span      12308 days (33.70 yr)  
   first obs. used      1985-12-14  
   last obs. used      2019-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53606  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:54:16  

Additional Information
 Earth MOID = 1.01972 au 
 Jupiter MOID = 2.46937 au 
 T_jup = 3.450 
[ 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 14.2   n/a MPO385030  
diameter diameter 3.271 km 0.839 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.314 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.415   0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34217 (2000 QA78)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QA78 = 1985 XY = 1999 GZ48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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