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508 Princetonia (A903 HC)
Classification: Main-belt Asteroid          SPK-ID: 2000508
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 99 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .007907440275764333 1.6052e-08  
a 3.160985585923691 9.1858e-09 au
q 3.135990281190447 5.17e-08 au
i 13.33662261992281 5.2612e-07 deg
node 44.19386100346034 1.2824e-06 deg
peri 205.9141237799394 0.00013048 deg
M 329.0778726624169 0.00012809 deg
tp 2459572.818979497641
(2021-Dec-24.31897950)
0.00073019 TDB
period 2052.731751802948
5.62
8.9479e-06
2.45e-08
d
yr
n .1753760566541664 7.6446e-10 deg/d
Q 3.185980890656934 9.2585e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3256  
   data-arc span      41354 days (113.22 yr)  
   first obs. used      1908-04-07  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38616  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:10:13  

Additional Information
 Earth MOID = 2.12743 au 
 Jupiter MOID = 1.78816 au 
 T_jup = 3.163 
[ 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 8.41   n/a E2021B10  
diameter diameter 117.241 km 0.925 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 52.8 h n/a LCDB (Rev. 2020-October); 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 0.065   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.732   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=1.13, mean=5.20, max.=7.94) deg.
U-B UB 0.325   0.026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 (A903 HC)          Discovered 1903-Apr-20 by Dugan, R. S. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A903 HC = 1926 KA = A920 GF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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