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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
(2020-Mar-01.96362420)		 0.00011761 TDB
period 1388.347444881329
3.80		 8.9333e-06
2.446e-08		 d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456374.5 (2013-Mar-23.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07011782856732289 3.8266e-08  
q 2.264817719064386 9.3847e-08 au
tp 2456138.364408917485
(2012-Jul-29.86440892)		 0.00011546 TDB
node 177.1197859144438 2.9709e-05 deg
peri 180.7575971994779 4.1613e-05 deg
i 7.575245232921295 4.2317e-06 deg
   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
 Jupiter MOID = 2.68114 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.464307114008531E-15 -3.572315173954138E-15 -2.325356424546417E-13 5.349914445542624E-15 -4.374073754837722E-14 3.011358817612958E-16
q -3.572315173954138E-15 8.807302520628532E-15 5.852399170719799E-13 -1.232599816574684E-14 1.137068207304183E-13 -5.744766913784785E-16
tp -2.325356424546417E-13 5.852399170719799E-13 1.333153104168634E-8 -1.490024891329865E-12 3.379126276905681E-9 9.127871005116193E-12
node 5.349914445542624E-15 -1.232599816574684E-14 -1.490024891329865E-12 8.826068392351358E-10 -8.746875642984353E-10 -2.739181472569277E-12
peri -4.374073754837722E-14 1.137068207304183E-13 3.379126276905681E-9 -8.746875642984353E-10 1.731679791182614E-9 5.001196492638125E-12
i 3.011358817612958E-16 -5.744766913784785E-16 9.127871005116193E-12 -2.739181472569277E-12 5.001196492638125E-12 1.790709795017022E-11

[ 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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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 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 ]
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