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JPL Small-Body Database Browser
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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 86 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008176101885055269 4.0087e-08  
a 3.163204086548793 1.5154e-08 au
q 3.137341407653947 1.219e-07 au
i 13.33512795866098 4.6513e-06 deg
node 44.2168932267187 1.497e-05 deg
peri 200.6294936449482 0.00025935 deg
M 194.8603734348187 0.00025973 deg
tp 2459543.123024954699
(2021-Nov-24.62302495)
0.0014836 TDB
period 2054.893159454681
5.63
1.4766e-05
4.043e-08
d
yr
n .1751915900559693 1.2589e-09 deg/d
Q 3.18906676544364 1.5277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2312  
   data-arc span      40783 days (111.66 yr)  
   first obs. used      1908-04-07  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42741  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:44:24  

Additional Information
 Earth MOID = 2.12794 au 
 Jupiter MOID = 1.7869 au 
 T_jup = 3.162 
[ 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 8.4   n/a MPO296126  
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. 2019-January); 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1917-Oct-30 06:45 00:02 Jupiter 1.89037640182374 1.89037551428803 1.89037728936321 4.42159206782657 4.31906642253557 2421531.781213914 1.8349775848829 153.551496409235 14.7806023607035 -74.2366796409911 3713340.51618083 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44
1928-Jul-16 07:49 00:02 Jupiter 1.80079625900887 1.80079581673673 1.80079670128183 4.44090748838126 4.33369811296662 2425443.825993599 1.59931726646244 148.953943477055 17.7204876205834 -85.6504478252462 3572616.84650487 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44
1939-Mar-13 14:05 00:02 Jupiter 1.98674750079787 1.98674676159654 1.98674824000079 3.87958984902703 3.76809565428045 2429336.086727020 1.51980358224051 141.266820237853 26.0275355112236 -78.985934054624 3574401.02739363 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44
2024-Sep-20 07:43 < 00:01 Jupiter 1.91918594030489 1.91918554313191 1.91918633747797 4.33519287363865 4.23216349873845 2460573.821222359 0.362653271439159 53.6286865973844 14.5618890053153 -78.2422475823394 3752264.36840773 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44
2035-Jun-06 19:43 < 00:01 Jupiter 1.79606823074731 1.79606779460756 1.79606866688778 4.49240371778124 4.38617085801537 2464485.321202558 0.550303381724444 134.49910957616 17.2635501107704 -85.3158499005167 3643986.30931869 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44
2046-Feb-06 01:10 < 00:01 Jupiter 1.96110685957251 1.96110632414221 1.96110739500303 4.04160859716319 3.93329113894121 2468382.548280957 0.824920726465769 105.13898780349 23.3602579488269 -83.9833070115784 3684088.65110361 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44
2131-Aug-14 05:48 00:03 Jupiter 1.94737131113638 1.94737029889087 1.94737232338688 4.22392248830846 4.11966108582222 2499616.741626456 2.50914197531395 173.827973010736 14.150226862347 -72.9859510389538 3731053.19458497 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44
2142-Apr-27 22:14 00:03 Jupiter 1.79344167169783 1.79344125631031 1.79344208708586 4.51361247526196 4.4077340963829 2503526.426447892 2.62075448133773 132.798056292145 17.0034907362593 -86.0080101744864 3679137.09821616 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44
2153-Jan-04 09:41 00:03 Jupiter 1.92626033945993 1.92625913068703 1.92626154824805 4.18900277640947 4.08268253250615 2507430.903485232 3.03044044020329 310.762743592016 25.1608805713754 -79.2510001682905 3667018.49265617 T 86 CATAB v2.0f-lin.ifort 2019-Dec-13 20:44:34 2019-Dec-13 20:44

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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