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11594 (1995 HP)
Classification: Main-belt Asteroid          SPK-ID: 2011594
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2391795691834859 2.4353e-08  
a 2.327054541117491 5.1326e-09 au
q 1.770470638506535 5.7611e-08 au
i 3.589689447331934 3.2062e-06 deg
node 100.0692162688207 4.9252e-05 deg
peri 214.7594304789934 4.979e-05 deg
M 315.3160787699511 7.6073e-06 deg
tp 2459161.437424562183
(2020-Nov-07.93742456)
2.7559e-05 TDB
period 1296.606726703841
3.55
4.2897e-06
1.174e-08
d
yr
n .2776477960400308 9.1858e-10 deg/d
Q 2.883638443728447 6.3602e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2086  
   data-arc span      9231 days (25.27 yr)  
   first obs. used      1995-04-26  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49874  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:26:03  

Additional Information
 Earth MOID = .758061 au 
 Jupiter MOID = 2.41379 au 
 T_jup = 3.532 
[ 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 14.5   n/a MPO473923  
diameter diameter 2.940 km 0.394 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 6.314 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.389   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

11594 (1995 HP)          Discovered 1995-Apr-27 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 HP = 1996 XG6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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