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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06973527686532215 3.6182e-08  
a 2.434317506211622 9.7401e-09 au
q 2.264559700937855 8.7822e-08 au
i 7.576174483193927 4.0718e-06 deg
node 176.9706173328938 2.9303e-05 deg
peri 180.2827314805981 4.1198e-05 deg
M 23.04808397737585 2.9911e-05 deg
tp 2458911.682900318727
(2020-Mar-03.18290032)
0.0001152 TDB
period 1387.280431494623
3.80
8.3261e-06
2.28e-08
d
yr
n .2595005247872952 1.5575e-09 deg/d
Q 2.60407531148539 1.0419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2110  
   data-arc span      25260 days (69.16 yr)  
   first obs. used      1951-09-04  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46101  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:48:15  

Additional Information
 Earth MOID = 1.26014 au 
 Jupiter MOID = 2.68113 au 
 T_jup = 3.490 
[ 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 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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