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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.


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

[ hide close-approach data ]
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 00:01 Jupiter 1.89037634356441 1.89037585454007 1.89037683259026 4.42159122468882 4.31906555675935 2421531.780936246 1.23267734482533 93.2714359433851 5.20437358419303 -74.894146347347 14299121.4886364 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12
1928-Jul-16 07:49 00:01 Jupiter 1.80079624650614 1.8007961078831 1.80079638512929 4.44090641967293 4.33369701766603 2425443.825603933 1.08109704551403 29.1273644004346 3.75271210308849 -78.0614892470586 15671163.9526518 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12
1939-Mar-13 14:04 00:01 Jupiter 1.9867475016269 1.98674712703122 1.98674787622372 3.87958910636926 3.76809489032043 2429336.086297593 1.03266710397225 80.8206600315533 3.96516854521569 -75.8912687042224 11031860.3999354 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12
2024-Sep-20 07:43 < 00:01 Jupiter 1.91918603134032 1.9191858307365 1.91918623194414 4.33519140770318 4.23216200263841 2460573.821403628 0.222145620288629 19.1105489581582 4.38292577360408 -62.8914069671684 15501652.2065559 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12
2035-Jun-06 19:43 < 00:01 Jupiter 1.7960681053105 1.79606798399995 1.79606822662105 4.49240265076006 4.38616975823583 2464485.321441432 0.338975293976913 21.578562451838 3.83132934311417 -78.6062246553806 19584179.4767487 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12
2046-Feb-06 01:10 < 00:01 Jupiter 1.96110640671262 1.96110609295524 1.96110672047055 4.04160856178197 3.93329107783511 2468382.548650191 0.510625325717413 58.5322472401549 3.6946264119924 -75.0434442745266 16763326.0320628 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12
2131-Aug-14 05:49 00:02 Jupiter 1.94737188078353 1.94737118213866 1.94737257943051 4.2239199063723 4.11965847000961 2499616.742657261 1.6091323442307 109.641337341653 5.79633260961615 -70.901612037426 13069832.6560581 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12
2142-Apr-27 22:16 00:02 Jupiter 1.79344160413256 1.79344149679445 1.79344171147067 4.51361122046067 4.40773280799517 2503526.427518390 1.68248438700407 40.7604969722578 4.62017886990636 -87.418510562778 18437462.860927 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12
2153-Jan-04 09:43 00:02 Jupiter 1.92625944551457 1.92625863550723 1.92626025552991 4.18900382765639 4.08268356174045 2507430.904775251 1.94665855716763 202.968257866681 3.6601247144731 -78.0623643254822 14533841.8708541 T 99 CATAB v2.0g-lin.ifort 2021-Jul-08 11:12:02 2021-Jul-08 11:12

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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