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508 Princetonia (1903 LQ)
Classification: Main-belt Asteroid          SPK-ID: 2000508
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 67 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008613814528266471 4.0772e-08  
a 3.163779592263456 1.9185e-08 AU
q 3.136527381647384 1.2781e-07 AU
i 13.33095141437336 4.8706e-06 deg
node 44.25114393957839 1.6035e-05 deg
peri 188.9659091820091 0.00022892 deg
M 286.0369328547589 0.00022928 deg
tp 2457422.799112831179
(2016-Feb-04.29911283)
0.0013099 JED
period 2055.453978411791
5.63
1.8697e-05
5.119e-08
d
yr
n .1751437900245108 1.5931e-09 deg/d
Q 3.191031802879527 1.9351e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      39072 days (106.97 yr)  
   first obs. used      1908-04-07  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56201  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:00:35  

Additional Information
 Earth MOID = 2.12833 AU 
 T_jup = 3.162 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.4 mag n/a MPO296126  
diameter diameter 142.35 km 2.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 24
rotation period rot_per 52.8 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Piironen, J.; Bowell, E.; Erikson, A.; Magnusson, P. (1994) Astron. Astrophys. Suppl. Ser. 106, 587-595.]
geometric albedo albedo 0.0441   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 24
B-V BV .732 mag .015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=1.13, mean=5.20, max.=7.94) deg.
U-B UB .325 mag .026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=1.13, mean=5.20, max.=7.94) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

508 Princetonia (1903 LQ)          Discovered 1903-Apr-20 by Dugan, R. S. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1903 LQ = 1926 KA = A920 GF 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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