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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 97 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008055751073769072 1.5816e-08  
a 3.161760388209087 9.3225e-09 au
q 3.136290033566771 5.0908e-08 au
i 13.33513798965175 5.2637e-07 deg
node 44.19669531824036 1.2832e-06 deg
peri 204.5179380201866 0.00012962 deg
M 296.1016369923449 0.00012724 deg
tp 2459564.984521181872
(2021-Dec-16.48452118)
0.00072543 TDB
period 2053.486528438205
5.62
9.0821e-06
2.487e-08
d
yr
n .17531159567616 7.7537e-10 deg/d
Q 3.187230742851403 9.3976e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2981  
   data-arc span      41258 days (112.96 yr)  
   first obs. used      1908-04-07  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39726  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:30:06  

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

[ 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 1.89037634672544 1.89037585100543 1.89037684244705 4.42159120657497 4.319065538389 2421531.780947348 1.24879381971413 94.4870772590413 5.20823468246642 -74.8756327938966 14287998.8696324 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31
1928-Jul-16 07:49 00:01 Jupiter 1.80079624569929 1.80079610636758 1.8007963850312 4.44090643134745 4.33369702958073 2425443.825612465 1.09534380353007 29.3301985947521 3.75468202523649 -78.0373609550652 15606258.0102631 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31
1939-Mar-13 14:04 00:01 Jupiter 1.98674749872231 1.98674711935394 1.98674787809181 3.87958910993402 3.76809489382525 2429336.086301818 1.04634802591654 81.967715051678 3.96600353089284 -75.8988661855283 11031756.5084356 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31
2024-Sep-20 07:43 < 00:01 Jupiter 1.91918603111613 1.91918583050713 1.91918623172519 4.33519140859941 4.23216200354428 2460573.821402817 0.223126139808062 19.1569380788539 4.42482635677366 -63.0242987321954 15408365.9053711 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31
2035-Jun-06 19:43 < 00:01 Jupiter 1.7960681055955 1.79606798395406 1.79606822723694 4.49240264747232 4.38616975488553 2464485.321437406 0.341668147452247 21.5791478480237 3.85843609297783 -78.6117196993853 19547091.0084418 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31
2046-Feb-06 01:10 < 00:01 Jupiter 1.96110640816231 1.96110609287069 1.96110672345448 4.04160855553383 3.93329107149608 2468382.548646901 0.515473602814327 58.8395121922335 3.69611759955574 -75.0352454201183 16711441.9407897 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31
2131-Aug-14 05:49 00:02 Jupiter 1.94737187807088 1.94737117285924 1.94737258328464 4.22391990899119 4.11965847254771 2499616.742653374 1.6280429769304 110.915933167401 5.81165943890634 -70.9345201514602 13042046.4449885 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31
2142-Apr-27 22:16 00:02 Jupiter 1.79344160421664 1.79344149687323 1.79344171156005 4.51361122092487 4.40773280847554 2503526.427512215 1.70233640524695 41.2386994783207 4.62890105652943 -87.4791795447742 18420053.68962 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31
2153-Jan-04 09:43 00:02 Jupiter 1.92625944838848 1.92625863006322 1.92626026672195 4.18900383122022 4.08268356555778 2507430.904772363 1.96972218499469 205.102111821743 3.66070293278178 -78.061319260801 14508071.2764762 T 97 CATAB v2.0g-lin.ifort 2021-May-03 18:31:44 2021-May-03 18:31

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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