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43513 (2001 DG4)
Classification: Main-belt Asteroid          SPK-ID: 2043513
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109479668743086 5.1063e-08  
a 2.332106958735733 1.0058e-08 au
q 2.073364433130576 1.2125e-07 au
i 7.210379627661873 4.3654e-06 deg
node 75.38353217228642 4.534e-05 deg
peri 311.3071297006849 4.9592e-05 deg
M 296.033028119565 2.1793e-05 deg
tp 2459431.639630981345
(2021-Aug-05.13963098)
7.9362e-05 TDB
period 1300.831737178651
3.56
8.4155e-06
2.304e-08
d
yr
n .2767460154230224 1.7904e-09 deg/d
Q 2.590849484340889 1.1174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1030  
   data-arc span      8565 days (23.45 yr)  
   first obs. used      1997-02-07  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56589  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:20:33  

Additional Information
 Earth MOID = 1.08552 au 
 Jupiter MOID = 2.82461 au 
 T_jup = 3.551 
[ 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 15.31   n/a E2021B10  
diameter diameter 1.840 km 0.416 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.184 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.476   0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43513 (2001 DG4)          Discovered 2001-Feb-16 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 DG4 = 1998 HW134 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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