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JPL Small-Body Database Browser
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4839 Daisetsuzan (1989 QG)
Classification: Main-belt Asteroid          SPK-ID: 2004839
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07008143505790548 3.8384e-08  
a 2.435565568168288 1.0561e-08 au
q 2.264877637973432 9.4062e-08 au
i 7.574756064614589 4.2516e-06 deg
node 176.9933417412323 2.9873e-05 deg
peri 179.9068619445823 4.1864e-05 deg
M 279.6260951961042 3.065e-05 deg
tp 2458910.463626153465
(2020-Mar-01.96362615)
0.00011862 TDB
period 1388.347445448971
3.80
9.0301e-06
2.472e-08
d
yr
n .259301085747726 1.6865e-09 deg/d
Q 2.606253498363145 1.1301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1839  
   data-arc span      24848 days (68.03 yr)  
   first obs. used      1951-09-04  
   last obs. used      2019-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48377  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:47:51  

Additional Information
 Earth MOID = 1.25948 au 
 Jupiter MOID = 2.68114 au 
 T_jup = 3.489 
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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 13.0   n/a MPO452234  
diameter diameter 8.141 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4839 Daisetsuzan (1989 QG)          Discovered 1989-Aug-25 by Endate and Watanabe at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1989 QG = 1951 RE = 1982 YH2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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