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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 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0971672090744027 3.6297e-08  
a 3.000252556989806 1.1371e-08 au
q 2.708726389508766 1.0688e-07 au
i 14.46931893174351 3.6884e-06 deg
node 179.3836149050593 1.6158e-05 deg
peri 87.48549000365391 2.5048e-05 deg
M 192.0395587692026 2.0041e-05 deg
tp 2459886.104174010725
(2022-Nov-02.60417401)
0.00010674 TDB
period 1898.170190001873
5.20
1.0791e-05
2.954e-08
d
yr
n .1896563342403163 1.0782e-09 deg/d
Q 3.291778724470845 1.2475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      43357 days (118.70 yr)  
   first obs. used      1902-03-04  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40764  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:53:55  

Additional Information
 Earth MOID = 1.74349 au 
 Jupiter MOID = 1.87253 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455849.5 (2011-Oct-15.0) TDB
Reference: JPL 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009943071804217 3.6241e-08  
q 2.696080939207507 1.0721e-07 au
tp 2456092.420296197290
(2012-Jun-13.92029620)
9.9883e-05 TDB
node 179.4676465402779 1.6175e-05 deg
peri 87.62125154993271 2.452e-05 deg
i 14.46307419961299 3.6881e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      43357 days (118.70 yr)  
   first obs. used      1902-03-04  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40764  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:53:55  

Additional Information
 Jupiter MOID = 1.87253 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.31341134208826E-15 -3.868961681056253E-15 5.865537182880363E-14 -1.46463208001353E-15 7.842221112621197E-15 9.705194411945128E-16
q -3.868961681056253E-15 1.14950500295579E-14 -1.564088094400569E-13 4.990793737692942E-15 -2.497966187694074E-14 -2.235107521966718E-15
tp 5.865537182880363E-14 -1.564088094400569E-13 9.976624137716455E-9 -7.166141293779472E-12 1.864307629195258E-9 1.153999538403743E-12
node -1.46463208001353E-15 4.990793737692942E-15 -7.166141293779472E-12 2.616281517497154E-10 -2.544704960515579E-10 1.287340882178208E-12
peri 7.842221112621197E-15 -2.497966187694074E-14 1.864307629195258E-9 -2.544704960515579E-10 6.012397067510696E-10 -1.058417262453742E-12
i 9.705194411945128E-16 -2.235107521966718E-15 1.153999538403743E-12 1.287340882178208E-12 -1.058417262453742E-12 1.360172136719581E-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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