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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06973525576735481 3.8146e-08  
a 2.434317511832823 1.0249e-08 au
q 2.26455975752621 9.36e-08 au
i 7.576175310593454 4.2256e-06 deg
node 176.9706141666528 2.9641e-05 deg
peri 180.2827424783452 4.168e-05 deg
M 23.04807221005425 3.0608e-05 deg
tp 2458911.682945357131
(2020-Mar-03.18294536)
0.00011785 TDB
period 1387.280436299778
3.80
8.7609e-06
2.399e-08
d
yr
n .2595005238884573 1.6388e-09 deg/d
Q 2.604075266139436 1.0963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1911  
   data-arc span      24933 days (68.26 yr)  
   first obs. used      1951-09-04  
   last obs. used      2019-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:23:21  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
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 31 CATAB v2.0f-lin.ifort 2020-Feb-22 17:23:39 2020-Feb-22 17:23

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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