Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761898235460377 3.1462e-08  
a 2.722686477818209 7.3213e-09 au
q 2.242976827720236 8.6282e-08 au
i 5.01011919317813 3.8076e-06 deg
node 68.89554501448256 4.2662e-05 deg
peri 41.7656825941407 4.4179e-05 deg
M 45.62698248044016 1.0882e-05 deg
tp 2458792.523566875987
(2019-Nov-05.02356688)
4.9539e-05 TDB
period 1640.948225246791
4.49
6.6188e-06
1.812e-08
d
yr
n .2193853495565697 8.8489e-10 deg/d
Q 3.202396127916183 8.6113e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3321  
   data-arc span      42909 days (117.48 yr)  
   first obs. used      1903-01-19  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44367  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:28:54  

Additional Information
 Earth MOID = 1.2626 au 
 Jupiter MOID = 1.93377 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 9.3   n/a MPO431497  
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. 2019-August); 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.]
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 1.94781660836792 1.94781628275078 1.94781693398506 2.08224519444126 1.86172774556906 2420346.790330478 1.10281222358037 66.6628540566102 11.4915024471342 -89.504560106359 3014140.56205478 T 56 CATAB v2.0f-lin.ifort 2020-Nov-13 04:29:04 2020-Nov-13 04:29
2008-Aug-19 21:35 < 00:01 Jupiter 1.97468860262376 1.97468832298463 1.9746888822629 2.05720293135283 1.83690073751031 2454698.399626118 0.163058513346838 43.6225031706425 10.6110725938934 78.3357898437493 3242825.09856509 T 56 CATAB v2.0f-lin.ifort 2020-Nov-13 04:29:04 2020-Nov-13 04:29
2044-Dec-07 11:17 < 00:01 Jupiter 1.94007147778521 1.9400711867152 1.94007176885511 2.00278620434182 1.77143040047557 2467956.970228388 0.440180661360799 46.14526635283 12.2078500256931 83.1401108948993 3176782.0370804 T 56 CATAB v2.0f-lin.ifort 2020-Nov-13 04:29:04 2020-Nov-13 04:29
2081-Mar-29 05:10 < 00:01 Jupiter 1.99383060199605 1.99383017422207 1.99383102977013 2.45500621512183 2.27539273671577 2481217.715543770 0.847658854097187 55.0071112320086 5.57707365290755 87.4232881209749 2642462.33165418 T 56 CATAB v2.0f-lin.ifort 2020-Nov-13 04:29:04 2020-Nov-13 04:29
2138-Dec-27 16:39 00:01 Jupiter 1.99977695985853 1.99977637987632 1.99977753984074 2.13114096997478 1.92214589653067 2502309.193817664 1.49055083529123 60.923982782319 12.2320181576185 88.1911961675872 2650010.94474078 T 56 CATAB v2.0f-lin.ifort 2020-Nov-13 04:29:04 2020-Nov-13 04:29
2175-Apr-16 04:08 00:02 Jupiter 1.93540455355425 1.93540425629605 1.93540485081245 1.95080816050432 1.71182943348762 2515567.672395311 1.91004259679377 102.90756924195 17.2162163356415 -86.7230703961288 3219757.95356084 T 56 CATAB v2.0f-lin.ifort 2020-Nov-13 04:29:04 2020-Nov-13 04:29

Alternate Designations
 A903 BL = 1948 BA = 1948 DA = A899 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-25 03:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin