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255 Oppavia (A886 FB)
Classification: Main-belt Asteroid          SPK-ID: 2000255
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07900951246945316 3.8462e-08  
a 2.74495384595236 8.8954e-09 au
q 2.528076380832514 1.0515e-07 au
i 9.464520625109925 4.4054e-06 deg
node 13.59519378746144 2.0676e-05 deg
peri 155.4392635967019 3.1364e-05 deg
M 204.9679776448765 2.4599e-05 deg
tp 2459715.852185424806
(2022-May-16.35218542)
0.0001144 TDB
period 1661.119959868856
4.55
8.0746e-06
2.211e-08
d
yr
n .2167212535501781 1.0535e-09 deg/d
Q 2.961831311072207 9.5982e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3000  
   data-arc span      49152 days (134.57 yr)  
   first obs. used      1886-04-01  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42434  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:31:41  

Additional Information
 Earth MOID = 1.53615 au 
 Jupiter MOID = 2.0036 au 
 T_jup = 3.324 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456282.5 (2012-Dec-21.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07686628032299828 3.8701e-08  
q 2.534521202380241 1.0559e-07 au
tp 2456391.717399578728
(2013-Apr-09.21739958)
0.00011384 TDB
node 13.68945692344742 2.0641e-05 deg
peri 155.4122864244895 3.1738e-05 deg
i 9.47236525053961 4.4079e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3000  
   data-arc span      49152 days (134.57 yr)  
   first obs. used      1886-04-01  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42434  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:31:41  

Additional Information
 Jupiter MOID = 2.0036 au 
 T_jup = 3.324 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.49776280115572E-15 -4.074021917202414E-15 5.439754557222919E-13 1.713799661458116E-15 1.462761989180174E-13 -7.505974553592763E-17
q -4.074021917202414E-15 1.114925409201866E-14 -1.372485091913419E-12 -6.692626353035123E-15 -3.762995069585965E-13 4.775442863630435E-16
tp 5.439754557222919E-13 -1.372485091913419E-12 1.296036731232295E-8 4.453722801091257E-12 2.752735852045372E-9 3.531053135190193E-12
node 1.713799661458116E-15 -6.692626353035123E-15 4.453722801091257E-12 4.260415669766152E-10 -4.191430532928387E-10 -7.492085552134973E-13
peri 1.462761989180174E-13 -3.762995069585965E-13 2.752735852045372E-9 -4.191430532928387E-10 1.007294645840843E-9 1.50688475815175E-12
i -7.505974553592763E-17 4.775442863630435E-16 3.531053135190193E-12 -7.492085552134973E-13 1.50688475815175E-12 1.942980355240844E-11

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 10.3   n/a MPO502155 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-August); 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 (A886 FB)          Discovered 1886-Mar-31 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A886 FB = 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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