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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 63 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0970565739221666 3.5314e-08  
a 3.000388310622459 1.1079e-08 au
q 2.709180900757326 1.0444e-07 au
i 14.47021071249525 3.6291e-06 deg
node 179.3744692569127 1.5919e-05 deg
peri 87.55266318754306 2.4778e-05 deg
M 229.8940943984579 2.0071e-05 deg
tp 2459886.555315019542
(2022-Nov-03.05531502)
0.00010673 TDB
period 1898.299022362807
5.20
1.0515e-05
2.879e-08
d
yr
n .189643462783808 1.0504e-09 deg/d
Q 3.291595720487592 1.2155e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3199  
   data-arc span      43422 days (118.88 yr)  
   first obs. used      1902-03-04  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:46:59  

Additional Information
 Earth MOID = 1.74233 au 
 Jupiter MOID = 1.8717 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455954.5 (2012-Jan-28.0) TDB
Reference: JPL 63 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009096973884812 3.5288e-08  
q 2.696192034984384 1.0484e-07 au
tp 2456092.349624356543
(2012-Jun-13.84962436)
9.9472e-05 TDB
node 179.4657052215719 1.594e-05 deg
peri 87.60373832963302 2.4251e-05 deg
i 14.46259617182995 3.6287e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3199  
   data-arc span      43422 days (118.88 yr)  
   first obs. used      1902-03-04  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:46:59  

Additional Information
 Jupiter MOID = 1.8717 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.245272608762438E-15 -3.68366232450875E-15 1.389008254289666E-13 -8.182305549460905E-16 2.688459337557188E-14 9.532784218300187E-16
q -3.68366232450875E-15 1.099079975239231E-14 -3.711923964725717E-13 2.948866826424875E-15 -7.587175928488845E-14 -2.250906999485601E-15
tp 1.389008254289666E-13 -3.711923964725717E-13 9.894588345791273E-9 -4.837447158517017E-12 1.841346842104467E-9 1.91319592580771E-12
node -8.182305549460905E-16 2.948866826424875E-15 -4.837447158517017E-12 2.540836940277269E-10 -2.467289825261867E-10 -5.125552782491178E-13
peri 2.688459337557188E-14 -7.587175928488845E-14 1.841346842104467E-9 -2.467289825261867E-10 5.881300771167567E-10 8.392016769934302E-13
i 9.532784218300187E-16 -2.250906999485601E-15 1.91319592580771E-12 -5.125552782491178E-13 8.392016769934302E-13 1.316721894682224E-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. 2020-October); 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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