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JPL Small-Body Database Browser
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15522 Trueblood (1999 XX136)
Classification: Main-belt Asteroid          SPK-ID: 2015522
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1258087240971877 3.4647e-08  
a 2.320451000070784 9.0753e-09 au
q 2.028518020421835 8.233e-08 au
i 9.836760987400572 4.0306e-06 deg
node 114.0988018120158 2.1941e-05 deg
peri 241.8852618632879 2.812e-05 deg
M 237.7832465598375 1.9912e-05 deg
tp 2459038.813928994815
(2020-Jul-08.31392899)
7.2519e-05 TDB
period 1291.091523842426
3.53
7.5742e-06
2.074e-08
d
yr
n .2788338342804711 1.6358e-09 deg/d
Q 2.612383979719733 1.0217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1449  
   data-arc span      24934 days (68.27 yr)  
   first obs. used      1951-02-04  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52124  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:20:25  

Additional Information
 Earth MOID = 1.04212 au 
 Jupiter MOID = 2.80533 au 
 T_jup = 3.548 
[ 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 MPO384889  
rotation period rot_per 7.183 h n/a LCDB (Rev. 2019-January); 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.]

15522 Trueblood           Discovered 1999 Dec. 14 by C. W. Juels at Fountain Hills.
Mark Trueblood (b. 1948) managed the Hubble Space Telescope control center at Ford Aerospace Corporation and now manages the U.S. Gemini instrument program at the National Optical Astronomy Observatory. He built and operates Winer Observatory in Sonoita, Arizona, as a service to the astronomical community.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1999 XX136 = 1998 KK61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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