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503 Evelyn (A903 BL)
Classification: Main-belt Asteroid          SPK-ID: 2000503
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 60 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761143308899036 1.0491e-08  
a 2.722168380292699 6.005e-09 au
q 2.242755517427798 2.7542e-08 au
i 5.010302937889639 4.5317e-07 deg
node 68.89264165926984 3.393e-06 deg
peri 41.71510870518336 9.6738e-06 deg
M 89.56863032749465 6.9435e-06 deg
tp 2458792.345737077048
(2019-Nov-04.84573708)
3.1661e-05 TDB
period 1640.479865718771
4.49
5.4282e-06
1.486e-08
d
yr
n .219447984411724 7.2614e-10 deg/d
Q 3.201581243157601 7.0626e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3438  
   data-arc span      43162 days (118.17 yr)  
   first obs. used      1903-01-19  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43501  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:29:29  

Additional Information
 Earth MOID = 1.26225 au 
 Jupiter MOID = 1.93447 au 
 T_jup = 3.330 
[ 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 9.34   n/a MPCxxxxx  
diameter diameter 81.68 km 4.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 38.780 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Kamel, L.; Lundgren, K. (1999) Minor Planet Bull. 26, 4-5.]
[Fauerbach, M.; Bennett, T.; Marks, S.A. (2007) Minor Planet Bull. 34, 57-58.]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Mansego, E.A.; Rodriguez, P.B.; de Haro, J.L.; Chiner, O.R.; et al. (2016) Minor Planet Bull. 43, 332-336.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.0585   0.008 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
B-V BV 0.725   0.037 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=17.75 deg.
U-B UB 0.315   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=17.75 deg.
Tholen spectral type spec_T XC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

503 Evelyn (A903 BL)          Discovered 1903-Jan-19 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
1914-Aug-02 06:58 < 00:01 Jupiter 1.94781658007218 1.94781640537236 1.94781675477222 2.08224507362419 1.86172760833868 2420346.790107542 0.945745545904664 46.4246659514666 2.20687132333782 -82.7770800402425 9946099.43814806 T 60 CATAB v2.0g-lin.ifort 2021-May-03 18:30:50 2021-May-03 18:30
2008-Aug-19 21:35 < 00:01 Jupiter 1.97468858174726 1.97468846445899 1.97468869903553 2.05720296706562 1.83690077632748 2454698.399641560 0.129934886198354 6.47458646818348 2.28904874369853 84.4381180277114 9993799.58818959 T 60 CATAB v2.0g-lin.ifort 2021-May-03 18:30:50 2021-May-03 18:30
2044-Dec-07 11:17 < 00:01 Jupiter 1.94007148892394 1.94007140124575 1.94007157660212 2.00278640236338 1.77143062713612 2467956.970342641 0.333257726815075 19.407431140574 2.81031229706293 -84.3406579843296 11566350.3326548 T 60 CATAB v2.0g-lin.ifort 2021-May-03 18:30:50 2021-May-03 18:30
2081-Mar-29 05:11 < 00:01 Jupiter 1.99383069122644 1.99383041008495 1.99383097236805 2.45500672206169 2.27539329305906 2481217.715721544 0.674541871664767 33.5780676094789 2.4156799832612 89.6613738653171 6521107.13673528 T 60 CATAB v2.0g-lin.ifort 2021-May-03 18:30:50 2021-May-03 18:30
2138-Dec-27 16:40 00:01 Jupiter 1.99977682653499 1.99977636396548 1.9997772891045 2.13114054155063 1.9221454080502 2502309.194118727 1.20515054484725 35.3098707122149 1.79284038648442 -84.619080959596 8515856.98476569 T 60 CATAB v2.0g-lin.ifort 2021-May-03 18:30:50 2021-May-03 18:30
2175-Apr-16 04:09 00:02 Jupiter 1.93540451447845 1.93540438986418 1.9354046390935 1.95080821653885 1.71182949359538 2515567.672784258 1.55606426494844 78.0707805894606 3.30780889299942 -85.0538813255565 13260119.9351292 T 60 CATAB v2.0g-lin.ifort 2021-May-03 18:30:50 2021-May-03 18:30

Alternate Designations
 A903 BL = 1948 BA = 1948 DA = A899 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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