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JPL Small-Body Database Browser
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461244 (2015 WQ15)
Classification: Main-belt Asteroid          SPK-ID: 2461244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2991934758164721 6.5553e-08  
a 2.781102859370756 3.2055e-08 au
q 1.949015028272491 1.8886e-07 au
i 9.701409243543988 1.53e-05 deg
node 59.49865889815105 5.1789e-05 deg
peri 306.5646176210375 6.7193e-05 deg
M 300.051842467719 3.3308e-05 deg
tp 2458882.596269740984
(2020-Feb-03.09626974)
0.00015879 TDB
period 1694.041339837159
4.64
2.9288e-05
8.019e-08
d
yr
n .2125095719533062 3.6741e-09 deg/d
Q 3.613190690469021 4.1646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      6448 days (17.65 yr)  
   first obs. used      2001-11-09  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59916  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:00:59  

Additional Information
 Earth MOID = .965783 au 
 Jupiter MOID = 1.90844 au 
 T_jup = 3.246 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457189.5 (2015-Jun-16.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3034555216924729 6.6479e-08  
q 1.933665807848999 1.9212e-07 au
tp 2457188.781484842554
(2015-Jun-15.28148484)
0.00014038 TDB
node 59.57615900324373 5.1983e-05 deg
peri 306.291616718936 6.6509e-05 deg
i 9.699163190732984 1.5264e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      6448 days (17.65 yr)  
   first obs. used      2001-11-09  
   last obs. used      2019-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59916  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:00:59  

Additional Information
 Jupiter MOID = 1.90844 au 
 T_jup = 3.246 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.419399888742856E-15 -1.269544224976328E-14 2.891579498378769E-12 1.267712810075569E-14 7.547099520236878E-13 4.175999920585152E-17
q -1.269544224976328E-14 3.69114104404217E-14 -7.369856493259206E-12 -2.398504638924072E-14 -1.879349468837434E-12 1.10910011532749E-14
tp 2.891579498378769E-12 -7.369856493259206E-12 1.970550201037441E-8 7.884725881677044E-11 5.878906516157747E-9 9.868965417643945E-11
node 1.267712810075569E-14 -2.398504638924072E-14 7.884725881677044E-11 2.702266639247937E-9 -2.637153684384365E-9 3.931377324595065E-10
peri 7.547099520236878E-13 -1.879349468837434E-12 5.878906516157747E-9 -2.637153684384365E-9 4.423431101360348E-9 -3.56451107115186E-10
i 4.175999920585152E-17 1.10910011532749E-14 9.868965417643945E-11 3.931377324595065E-10 -3.56451107115186E-10 2.33003385147897E-10

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 17.4   n/a MPO386703  

461244 (2015 WQ15)          Discovered 2001-Nov-09 by LINEAR at Socorro
Reference: Last Updated: 2016-02-25

[ show close-approach data ]
Alternate Designations
 2015 WQ15 = 2001 WK6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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