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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 94 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008055725319057565 3.4464e-08  
a 3.161760363962896 1.264e-08 au
q 3.136290090946127 1.0747e-07 au
i 13.3351448495773 4.0282e-06 deg
node 44.19672151140834 1.4688e-05 deg
peri 204.518298684038 0.00025847 deg
M 296.1012583568212 0.00025949 deg
tp 2459564.986676775197
(2021-Dec-16.48667678)
0.0014807 TDB
period 2053.486504817237
5.62
1.2314e-05
3.371e-08
d
yr
n .1753115976927448 1.0513e-09 deg/d
Q 3.187230636979664 1.2742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2868  
   data-arc span      41196 days (112.79 yr)  
   first obs. used      1908-04-07  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39359  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:14  

Additional Information
 Earth MOID = 2.12589 au 
 Jupiter MOID = 1.78775 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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