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482 Petrina (A902 EH)
Classification: Main-belt Asteroid          SPK-ID: 2000482
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 .09716721096208779 3.6767e-08  
a 3.000252557761999 1.1562e-08 au
q 2.708726384542395 1.0802e-07 au
i 14.46931878053535 3.7331e-06 deg
node 179.3836145389269 1.6241e-05 deg
peri 87.48548935497884 2.5211e-05 deg
M 192.0395594196833 2.009e-05 deg
tp 2459886.104170922839
(2022-Nov-02.60417092)
0.00010693 TDB
period 1898.170190734688
5.20
1.0972e-05
3.004e-08
d
yr
n .1896563341670968 1.0963e-09 deg/d
Q 3.291778730981603 1.2685e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2921  
   data-arc span      43149 days (118.14 yr)  
   first obs. used      1902-03-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41594  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:06:36  

Additional Information
 Earth MOID = 1.74349 au 
 Jupiter MOID = 1.87253 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455744.5 (2011-Jul-02.0) TDB
Reference: JPL 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1010538699090482 3.6695e-08  
q 2.695868903791377 1.0835e-07 au
tp 2456092.528879256672
(2012-Jun-14.02887926)
0.0001003 TDB
node 179.4684870552352 1.6257e-05 deg
peri 87.65067511661056 2.4669e-05 deg
i 14.46361052439295 3.7328e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2921  
   data-arc span      43149 days (118.14 yr)  
   first obs. used      1902-03-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41594  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:06:36  

Additional Information
 Jupiter MOID = 1.87253 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.346505266258886E-15 -3.958680804592227E-15 3.474962425390967E-15 -1.611690103390554E-15 -4.874843138177571E-15 1.019978280355752E-15
q -3.958680804592227E-15 1.17386872756767E-14 -9.907010424705859E-15 5.490399786679416E-15 8.829977420633494E-15 -2.331865509203286E-15
tp 3.474962425390967E-15 -9.907010424705859E-15 1.006055318837892E-8 -7.400038949038761E-12 1.884574822238642E-9 9.052048197716437E-13
node -1.611690103390554E-15 5.490399786679416E-15 -7.400038949038761E-12 2.642833432518728E-10 -2.570802973362533E-10 2.220820020121523E-12
peri -4.874843138177571E-15 8.829977420633494E-15 1.884574822238642E-9 -2.570802973362533E-10 6.08557810692304E-10 -2.015710357393774E-12
i 1.019978280355752E-15 -2.331865509203286E-15 9.052048197716437E-13 2.220820020121523E-12 -2.015710357393774E-12 1.393375640710533E-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 8.9   n/a MPO502157 IRAS observations used: 6
diameter diameter 45.751 km 0.304 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.7922 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Garlitz, J. (2012) http://eoni.com/~garlitzj/Period.htm]
[Pilcher, F.; Ferrero, A.; Oey, J. (2012) Minor Planet Bull. 39, 228-229.]
[Pilcher, F. (2014) Minor Planet Bull. 41, 47-49.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.246   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.871   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.12 deg.
U-B UB 0.455   0.043 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.12 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

482 Petrina (A902 EH)          Discovered 1902-Mar-03 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A902 EH = 1949 HP1 = 1956 TK = 1975 FY = 1987 SJ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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