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17518 Redqueen (1992 YD)
Classification: Main-belt Asteroid          SPK-ID: 2017518
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07679048197893337 3.7505e-08  
a 2.628103384910129 1.2223e-08 au
q 2.426290059292413 9.7951e-08 au
i 16.42882753310937 4.2652e-06 deg
node 95.78961217965205 1.7347e-05 deg
peri 17.17827063206293 3.9627e-05 deg
M 138.4898764523307 3.4835e-05 deg
tp 2458401.843610214502
(2018-Oct-10.34361021)
0.00014995 TDB
period 1556.188118898075
4.26
1.0856e-05
2.972e-08
d
yr
n .2313344997485993 1.6139e-09 deg/d
Q 2.829916710527844 1.3162e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1890  
   data-arc span      10042 days (27.49 yr)  
   first obs. used      1992-12-18  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:11:21  

Additional Information
 Earth MOID = 1.44649 au 
 Jupiter MOID = 2.32904 au 
 T_jup = 3.339 
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Orbital Elements at Epoch 2456841.5 (2014-Jul-03.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07827256475386564 3.7568e-08  
q 2.422497531060634 9.8619e-08 au
tp 2456848.248782615780
(2014-Jul-09.74878262)
0.00014565 TDB
node 95.82521198374057 1.7337e-05 deg
peri 17.52341305207668 3.8883e-05 deg
i 16.43450118758345 4.2667e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1890  
   data-arc span      10042 days (27.49 yr)  
   first obs. used      1992-12-18  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:11:21  

Additional Information
 Jupiter MOID = 2.32904 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.411380520070165E-15 -3.680139017199494E-15 7.021988823015171E-13 1.139872862970038E-14 1.579442814266777E-13 -3.33727240875418E-15
q -3.680139017199494E-15 9.725653549544914E-15 -1.807367596092842E-12 -2.846958006704622E-14 -4.086702875694744E-13 9.017938558143829E-15
tp 7.021988823015171E-13 -1.807367596092842E-12 2.12142218385306E-8 4.367312077157287E-11 5.098447182711497E-9 -4.187060316832729E-13
node 1.139872862970038E-14 -2.846958006704622E-14 4.367312077157287E-11 3.005637017447131E-10 -2.772938323848247E-10 -1.486379592536456E-12
peri 1.579442814266777E-13 -4.086702875694744E-13 5.098447182711497E-9 -2.772938323848247E-10 1.511882939271317E-9 1.308017895745365E-12
i -3.33727240875418E-15 9.017938558143829E-15 -4.187060316832729E-13 -1.486379592536456E-12 1.308017895745365E-12 1.820439078973941E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO435862  
diameter diameter 6.986 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.274   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

17518 Redqueen           Discovered 1992 Dec. 18 by A. Natori and T. Urata at the JCPM Yakiimo Station.
The Red Queen is one of the chess pieces that make up the characters in Lewis Carroll's Through the Looking Glass and what Alice found there. Alice has some very strange experiences and conversations with her.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011130/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1992 YD = 1998 GP5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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