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15496 (1999 DQ3)
Classification: Main-belt Asteroid          SPK-ID: 2015496
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036507652820905 3.2323e-08  
a 2.600127757062582 9.6046e-09 au
q 2.33062252521184 8.3512e-08 au
i 13.07011704245807 3.4722e-06 deg
node 97.72972479573443 1.7146e-05 deg
peri 64.62897202004746 2.7464e-05 deg
M 30.08557501479359 2.0337e-05 deg
tp 2458872.518771756853
(2020-Jan-24.01877176)
8.6439e-05 TDB
period 1531.406401402598
4.19
8.4853e-06
2.323e-08
d
yr
n .2350780300188638 1.3025e-09 deg/d
Q 2.869632988913325 1.06e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2252  
   data-arc span      15408 days (42.18 yr)  
   first obs. used      1978-04-11  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:50:38  

Additional Information
 Earth MOID = 1.37386 au 
 Jupiter MOID = 2.23012 au 
 T_jup = 3.371 
[ 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 13.4   n/a MPO502288  
rotation period rot_per 81.21 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]

15496 (1999 DQ3)          Discovered 1999-Feb-20 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 DQ3 = 1978 GG5 = 1987 LB = 1991 JB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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