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JPL Small-Body Database Browser
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487591 (2015 HY181)
Classification: Outer Main-belt Asteroid          SPK-ID: 2487591
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1940471794242374 5.5569e-08  
a 3.202589434157419 8.2022e-08 au
q 2.581135987605308 1.7573e-07 au
i 36.95642602164988 9.6534e-06 deg
node 151.2756385001845 9.3256e-06 deg
peri 225.6701604443195 2.687e-05 deg
M 195.0410141109991 2.2827e-05 deg
tp 2459559.732321404963
(2021-Dec-11.23232140)
0.00014512 TDB
period 2093.390874372561
5.73
8.0421e-05
2.202e-07
d
yr
n .1719697952289491 6.6065e-09 deg/d
Q 3.824042880709531 9.7938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      4956 days (13.57 yr)  
   first obs. used      2004-09-15  
   last obs. used      2018-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4681  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 16:28:54  

Additional Information
 Earth MOID = 1.65034 au 
 Jupiter MOID = 1.78951 au 
 T_jup = 2.855 
[ 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 15.2   n/a MPO440945  

487591 (2015 HY181)          Discovered 2012-Feb-13 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2017-03-14

[ show close-approach data ]
Alternate Designations
 2015 HY181 = 2012 CF22 = 2013 GW129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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