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11611 (1995 YQ)
Classification: Main-belt Asteroid          SPK-ID: 2011611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08258846823439543 1.5373e-08  
a 2.987221930447153 1.1636e-08 au
q 2.740511846935328 4.6006e-08 au
i 11.83167941566516 5.5759e-07 deg
node 117.3787332582992 5.3873e-06 deg
peri 178.1756531361503 1.8799e-05 deg
M 66.42361380648921 1.539e-05 deg
tp 2458852.547741778682
(2020-Jan-04.04774178)
8.0651e-05 TDB
period 1885.81749443203
5.16
1.1018e-05
3.017e-08
d
yr
n .1908986426644773 1.1154e-09 deg/d
Q 3.233932013958976 1.2597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2027  
   data-arc span      10133 days (27.74 yr)  
   first obs. used      1993-05-14  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48849  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:52:21  

Additional Information
 Earth MOID = 1.72261 au 
 Jupiter MOID = 1.96717 au 
 T_jup = 3.220 
[ 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 13.33   n/a E2021B10  
diameter diameter 7.696 km 0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.172   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11611 (1995 YQ)          Discovered 1995-Dec-18 by JPL/GEODSS NEAT at Haleakala
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 YQ = 1998 HQ120 = 1998 LD3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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