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11549 (1992 YY)
Classification: Main-belt Asteroid          SPK-ID: 2011549
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08863634055497795 2.8224e-08  
a 2.531879766944125 9.6367e-09 au
q 2.307463209677007 7.1069e-08 au
i 11.44339097350309 4.1582e-07 deg
node 268.2360969535924 4.4258e-06 deg
peri 326.97799086 1.4978e-05 deg
M 217.0345122248444 1.6586e-05 deg
tp 2459784.875168923882
(2022-Jul-24.37516892)
6.8937e-05 TDB
period 1471.509411722206
4.03
8.4011e-06
2.3e-08
d
yr
n .2446467532808152 1.3967e-09 deg/d
Q 2.756296324211242 1.0491e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2538  
   data-arc span      22410 days (61.36 yr)  
   first obs. used      1959-10-29  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39468  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:50:13  

Additional Information
 Earth MOID = 1.30102 au 
 Jupiter MOID = 2.30458 au 
 T_jup = 3.417 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.22   n/a E2021B10  
diameter diameter 10.539 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 2.6704 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pligge, Z.; Monnier, A.; Pharo, J.; Stolze, K.; Yim, A.; Ditteon, R. (2011) Minor Planet Bull. 38, 5-7.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.225   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11549 (1992 YY)          Discovered 1992-Dec-25 by Natori, A., Urata, T. at Yakiimo
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 YY = 1959 UM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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