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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07008143501608134 3.8211e-08  
a 2.435565567504415 1.0448e-08 au
q 2.264877637457949 9.3762e-08 au
i 7.574756368659879 4.2309e-06 deg
node 176.9933429962068 2.9717e-05 deg
peri 179.9068604769376 4.1649e-05 deg
M 279.6260956705202 3.0397e-05 deg
tp 2458910.463624197138
0.00011761 TDB
period 1388.347444881329
n .2593010858537443 1.6685e-09 deg/d
Q 2.606253497550881 1.118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1886  
   data-arc span      24895 days (68.16 yr)  
   first obs. used      1951-09-04  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48186  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:39:54  

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] (  
geometric albedo albedo 0.202   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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
2124-Jun-05 17:28 < 00:01 Juno 0.0325947003274315 0.0325822759567704 0.0326071247096262 4.91914240991757 4.91914233404066 2496991.227912265 0.344573625352463 619.981383125175 36.3130415354495 2.89642206518821 10370.9194531099 T 30 CATAB v2.0f-lin.ifort 2019-Nov-07 02:40:04 2019-Nov-07 02:40

Alternate Designations
 1989 QG = 1951 RE = 1982 YH2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Jan-29 06:31 UT
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