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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 ]

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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 57 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09716720972146281 3.674e-08  
a 3.000252557274604 1.1549e-08 au
q 2.708726387824547 1.0796e-07 au
i 14.46931880284849 3.7297e-06 deg
node 179.383614600637 1.6236e-05 deg
peri 87.48548992600465 2.5199e-05 deg
M 192.0395590129405 2.0085e-05 deg
tp 2459886.104172851668
(2022-Nov-02.60417285)
0.00010691 TDB
period 1898.170190272148
5.20
1.096e-05
3.001e-08
d
yr
n .1896563342133117 1.0951e-09 deg/d
Q 3.291778726724661 1.2671e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2940  
   data-arc span      43301 days (118.55 yr)  
   first obs. used      1902-03-04  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:27:29  

Additional Information
 Earth MOID = 1.74349 au 
 Jupiter MOID = 1.87253 au 
 T_jup = 3.198 
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Orbital Elements at Epoch 2455753.5 (2011-Jul-11.0) TDB
Reference: JPL 57 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1010484232220954 3.6669e-08  
q 2.695894266802332 1.0828e-07 au
tp 2456092.516733218522
(2012-Jun-14.01673322)
0.00010026 TDB
node 179.4684503965659 1.6253e-05 deg
peri 87.64728731210286 2.4658e-05 deg
i 14.46356518255372 3.7294e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2940  
   data-arc span      43301 days (118.55 yr)  
   first obs. used      1902-03-04  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:27:29  

Additional Information
 Jupiter MOID = 1.87253 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.344592835456992E-15 -3.953521950334551E-15 7.51924914613801E-15 -1.608373148992444E-15 -3.957752849278088E-15 1.014759277829417E-15
q -3.953521950334551E-15 1.172473421469922E-14 -2.05599100248491E-14 5.478124346377167E-15 6.406865543821411E-15 -2.319767171236782E-15
tp 7.51924914613801E-15 -2.05599100248491E-14 1.005292663063929E-8 -7.420451181009129E-12 1.88280700292391E-9 9.115942153625003E-13
node -1.608373148992444E-15 5.478124346377167E-15 -7.420451181009129E-12 2.641504429929842E-10 -2.569562369258058E-10 2.162965369301614E-12
peri -3.957752849278088E-15 6.406865543821411E-15 1.88280700292391E-9 -2.569562369258058E-10 6.080263961650385E-10 -1.958164436614379E-12
i 1.014759277829417E-15 -2.319767171236782E-15 9.115942153625003E-13 2.162965369301614E-12 -1.958164436614379E-12 1.39084697664136E-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

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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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