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JPL Small-Body Database Browser
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255 Oppavia
Classification: Main-belt Asteroid          SPK-ID: 2000255
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0787479186932319 4.1343e-08  
a 2.745984110294807 1.0042e-08 au
q 2.529743576844405 1.1207e-07 au
i 9.463291897354535 4.5118e-06 deg
node 13.60861802997297 2.2829e-05 deg
peri 155.7228741131255 3.3385e-05 deg
M 117.9712009473179 2.4875e-05 deg
tp 2458055.848183464867
(2017-Oct-29.34818346)
0.00011451 TDB
period 1662.055250587882
4.55
9.1174e-06
2.496e-08
d
yr
n .2165992976904139 1.1882e-09 deg/d
Q 2.96222464374521 1.0833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2563  
   data-arc span      48790 days (133.58 yr)  
   first obs. used      1886-04-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44902  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:51:22  

Additional Information
 Earth MOID = 1.53813 au 
 Jupiter MOID = 2.00429 au 
 T_jup = 3.324 
[ 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 10.39   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
diameter diameter 56.939 km 0.474 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 19.499 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Ditteon, R.; Kirkpatrick, E.; Doering, K. (2010) Minor Planet Bull. 37, 1-4.]
[Pilcher, F. (2013) Minor Planet Bull. 40, 158-160.]
geometric albedo albedo 0.038   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.764   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=1.51, mean=7.91, max.=14.32) deg.
U-B UB 0.275   0.056 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=2.18, mean=8.25, max.=14.32) deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

255 Oppavia          Discovered 1886-Mar-31 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 VC = 1938 XC = 1945 GD = 1951 SG = A904 EC = A924 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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