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108912 (2001 PD12)
Classification: Main-belt Asteroid          SPK-ID: 2108912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08036728303426449 4.6618e-08  
a 3.051674180591722 2.3095e-08 au
q 2.80641941799175 1.4087e-07 au
i 11.06100563151322 4.5592e-06 deg
node 114.4125623255751 3.0296e-05 deg
peri 292.2179010229301 4.534e-05 deg
M 136.1868724681223 3.4185e-05 deg
tp 2458263.888631257896
(2018-May-25.38863126)
0.00018392 TDB
period 1947.178079217796
5.33
2.2104e-05
6.052e-08
d
yr
n .1848829358969654 2.0988e-09 deg/d
Q 3.296928943191694 2.4951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      6833 days (18.71 yr)  
   first obs. used      2001-08-11  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54566  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 18:58:47  

Additional Information
 Earth MOID = 1.84046 au 
 Jupiter MOID = 2.01535 au 
 T_jup = 3.203 
[ show covariance matrix ]

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 14.2   n/a MPO338035  
diameter diameter 5.313 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.520 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.172   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108912 (2001 PD12)          Discovered 2001-Aug-11 by NEAT at Haleakala
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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