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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 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761143282450293 1.0538e-08  
a 2.722168372407159 6.405e-09 au
q 2.242755518130808 2.7558e-08 au
i 5.010302917327629 4.5327e-07 deg
node 68.89264146536323 3.3931e-06 deg
peri 41.71511099422376 9.7013e-06 deg
M 89.56863074955484 6.9523e-06 deg
tp 2458792.345736927270
(2019-Nov-04.84573693)
3.1697e-05 TDB
period 1640.479858590592
4.49
5.7899e-06
1.585e-08
d
yr
n .2194479853652649 7.7451e-10 deg/d
Q 3.201581226683511 7.533e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3403  
   data-arc span      43139 days (118.11 yr)  
   first obs. used      1903-01-19  
   last obs. used      2021-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 11:17:00  

Additional Information
 Earth MOID = 1.26225 au 
 Jupiter MOID = 1.93447 au 
 T_jup = 3.330 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456946.5 (2014-Oct-16.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1759240701063535 1.0345e-08  
q 2.243510734216758 2.6957e-08 au
tp 2457153.853124582145
(2015-May-11.35312458)
3.2492e-05 TDB
node 68.95006534087966 3.3942e-06 deg
peri 42.26324938289746 9.7054e-06 deg
i 5.009966888946336 4.5315e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3403  
   data-arc span      43139 days (118.11 yr)  
   first obs. used      1903-01-19  
   last obs. used      2021-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 11:17:00  

Additional Information
 Jupiter MOID = 1.93447 au 
 T_jup = 3.330 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.070237058915435E-16 -2.73969122536658E-16 -2.103307398962719E-13 -3.980366224810009E-15 -5.438934326982793E-14 -5.659484999841918E-16
q -2.73969122536658E-16 7.266934297105077E-16 5.31137442939697E-13 1.093907963121575E-14 1.361360808744079E-13 1.690278803424909E-15
tp -2.103307398962719E-13 5.31137442939697E-13 1.055708513768102E-9 -7.802849956705081E-12 2.956985545851177E-10 -1.574866469962728E-12
node -3.980366224810009E-15 1.093907963121575E-14 -7.802849956705081E-12 1.152029244945209E-11 -1.328745549360818E-11 -3.583691673129969E-14
peri -5.438934326982793E-14 1.361360808744079E-13 2.956985545851177E-10 -1.328745549360818E-11 9.419404184701017E-11 -4.530631285451688E-13
i -5.659484999841918E-16 1.690278803424909E-15 -1.574866469962728E-12 -3.583691673129969E-14 -4.530631285451688E-13 2.053460882160037E-13

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 9.35   n/a E2021B10  
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 1.9478165933845 1.94781641257955 1.94781677418967 2.08224506001208 1.86172759342027 2420346.790185527 1.00784080169115 49.419125521012 2.20728444164033 -82.7716226176354 9931449.73909025 T 58 CATAB v2.0f-lin.ifort 2021-Mar-16 11:18:09 2021-Mar-16 11:18
2008-Aug-19 21:36 < 00:01 Jupiter 1.97468859876767 1.97468848079458 1.97468871674077 2.05720285817793 1.83690065510344 2454698.399653387 0.130960233293787 6.50614973567729 2.29114702385186 84.536465939528 9899799.76398849 T 58 CATAB v2.0f-lin.ifort 2021-Mar-16 11:18:09 2021-Mar-16 11:18
2044-Dec-07 11:17 < 00:01 Jupiter 1.94007149062026 1.94007140279551 1.94007157844501 2.00278631147971 1.77143052323664 2467956.970309006 0.352387193026524 20.372359374422 2.8118142438336 -84.27159367978 11540925.6467562 T 58 CATAB v2.0f-lin.ifort 2021-Mar-16 11:18:09 2021-Mar-16 11:18
2081-Mar-29 05:11 < 00:01 Jupiter 1.99383067353184 1.9938303828929 1.9938309641709 2.45500669931169 2.27539326582491 2481217.715685996 0.717825767008828 35.7099160299102 2.42258094923037 89.7435217206313 6511010.00360039 T 58 CATAB v2.0f-lin.ifort 2021-Mar-16 11:18:09 2021-Mar-16 11:18
2138-Dec-27 16:39 00:01 Jupiter 1.99977684758033 1.99977635761182 1.99977733754895 2.13114049111774 1.92214535323543 2502309.194073477 1.28431261050794 37.6151269213261 1.79324145147859 -84.5968296707229 8512831.32075067 T 58 CATAB v2.0f-lin.ifort 2021-Mar-16 11:18:09 2021-Mar-16 11:18
2175-Apr-16 04:09 00:02 Jupiter 1.93540453895176 1.9354044084958 1.93540466940861 1.95080827130197 1.71182955782416 2515567.672709221 1.65853518998483 83.1544429516292 3.30853806703729 -85.037115481898 13256310.8031879 T 58 CATAB v2.0f-lin.ifort 2021-Mar-16 11:18:09 2021-Mar-16 11:18

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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