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5438 Lorre (1990 QJ)
Classification: Main-belt Asteroid          SPK-ID: 2005438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2760059085907768 1.2672e-08  
a 2.74564886983213 1.0591e-08 au
q 1.987833558842873 3.3656e-08 au
i 26.56835754358568 5.3294e-07 deg
node 298.4833260128266 1.5497e-06 deg
peri 238.5040658535449 3.8352e-06 deg
M 69.66708487511475 3.6236e-06 deg
tp 2459074.918498293442
(2020-Aug-13.41849829)
1.5515e-05 TDB
period 1661.750894585143
4.55
9.6147e-06
2.632e-08
d
yr
n .2166389686763938 1.2535e-09 deg/d
Q 3.503464180821387 1.3514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2230  
   data-arc span      24783 days (67.85 yr)  
   first obs. used      1953-08-15  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 23:54:06  

Additional Information
 Earth MOID = 1.09879 au 
 Jupiter MOID = 1.93571 au 
 T_jup = 3.144 
[ 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 11.83   n/a MPO614063  
diameter diameter 28.072 km 0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 25.30 h n/a LCDB (Rev. 2020-October); 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:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Polakis, T. (2020) Minor Planet Bull. 47, 177-186.]
geometric albedo albedo 0.056   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5438 Lorre (1990 QJ)          Discovered 1990-Aug-18 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 QJ = 1952 CD = 1970 AV = 1985 OT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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