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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06988054780011585 1.7234e-08  
a 2.435115766611149 8.1776e-09 au
q 2.264948542883663 4.1375e-08 au
i 7.57604326161885 6.8655e-07 deg
node 176.9606996512622 6.5073e-06 deg
peri 180.5403562432251 1.6273e-05 deg
M 125.5275857841679 1.5924e-05 deg
tp 2458912.534368792103
(2020-Mar-04.03436879)
6.1373e-05 TDB
period 1387.962862078856
3.80
6.9916e-06
1.914e-08
d
yr
n .2593729341293765 1.3065e-09 deg/d
Q 2.605282990338635 8.7491e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2435  
   data-arc span      25419 days (69.59 yr)  
   first obs. used      1951-09-04  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:32:26  

Additional Information
 Earth MOID = 1.25976 au 
 Jupiter MOID = 2.67882 au 
 T_jup = 3.490 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457072.5 (2015-Feb-19.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07113027773653705 1.7268e-08  
q 2.261038641094151 4.15e-08 au
tp 2457524.607277092750
(2016-May-16.10727709)
6.0539e-05 TDB
node 177.0474466504825 6.5042e-06 deg
peri 180.427498858399 1.5983e-05 deg
i 7.579028748021971 6.8743e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2435  
   data-arc span      25419 days (69.59 yr)  
   first obs. used      1951-09-04  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44384  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:32:26  

Additional Information
 Jupiter MOID = 2.67882 au 
 T_jup = 3.490 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.981908069281774E-16 -7.048773310880197E-16 -1.508439458560046E-13 -2.505069512601481E-16 -1.082168997128189E-14 -2.490506241717945E-16
q -7.048773310880197E-16 1.722250488328586E-15 3.12190757137461E-13 8.632020139502385E-16 1.047018295105741E-14 6.329397004663063E-16
tp -1.508439458560046E-13 3.12190757137461E-13 3.664995819769897E-9 4.709197828528297E-11 8.84141574176815E-10 -4.332064129045654E-12
node -2.505069512601481E-16 8.632020139502385E-16 4.709197828528297E-11 4.230525369028862E-11 -2.88481407811033E-11 3.058615410782922E-12
peri -1.082168997128189E-14 1.047018295105741E-14 8.84141574176815E-10 -2.88481407811033E-11 2.554603705966227E-10 -4.164174920283514E-12
i -2.490506241717945E-16 6.329397004663063E-16 -4.332064129045654E-12 3.058615410782922E-12 -4.164174920283514E-12 4.725581283376265E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.05   n/a MPCxxxxx  
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

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