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JPL Small-Body Database Browser
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495 Eulalia (A902 UL)
Classification: Main-belt Asteroid          SPK-ID: 2000495
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 68 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1284819707509663 3.5255e-08  
a 2.488383160942116 7.4692e-09 au
q 2.168670788440755 8.9293e-08 au
i 2.27819362099618 3.6374e-06 deg
node 186.4287494970376 9.6612e-05 deg
peri 207.5073795154253 9.7631e-05 deg
M 256.1194704155047 1.5298e-05 deg
tp 2459014.219472020772
(2020-Jun-13.71947202)
6.1563e-05 TDB
period 1433.752894052514
3.93
6.4554e-06
1.767e-08
d
yr
n .2510892926482311 1.1305e-09 deg/d
Q 2.808095533443479 8.4288e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2707  
   data-arc span      42739 days (117.01 yr)  
   first obs. used      1902-10-26  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45512  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:53:52  

Additional Information
 Earth MOID = 1.17452 au 
 Jupiter MOID = 2.60277 au 
 T_jup = 3.462 
[ 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 10.78   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 22
diameter diameter 37.287 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 28.967 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2013) Minor Planet Bull. 40, 71-80.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 144-155.]
[Vokrouhlicky, D.; Durech, J.; Pravec, P.; Oey, J.; et al. (2016) Astron. Astrophys. 585, A56.]
[Oey, J.; Williams, H.; Groom, R. (2017) Minor Planet Bull. 44, 200-204.]
geometric albedo albedo 0.062   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.690   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=2.28 deg.
U-B UB 0.160   0.060 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=2.28 deg.

495 Eulalia (A902 UL)          Discovered 1902-Oct-25 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A902 UL = 1988 PA2 = A906 XC = A916 GF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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