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135528 (2002 AY181)
Classification: Inner Main-belt Asteroid          SPK-ID: 2135528
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08002279165639584 7.3842e-08  
a 1.986812350147242 7.0161e-09 au
q 1.827822079391055 1.4477e-07 au
i 16.52848073427388 6.7597e-06 deg
node 306.8796839734837 1.3837e-05 deg
peri 177.5821180885931 3.3413e-05 deg
M 252.5407409602947 3.0309e-05 deg
tp 2459505.833913509725
(2021-Oct-18.33391351)
8.6963e-05 TDB
period 1022.90123574076
2.80
5.4183e-06
1.483e-08
d
yr
n .351940135979303 1.8642e-09 deg/d
Q 2.145802620903429 7.5776e-09 au
  Orbit Determination Parameters
   # obs. used (total)      534  
   data-arc span      6924 days (18.96 yr)  
   first obs. used      2001-12-20  
   last obs. used      2020-12-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:13:27  

Additional Information
 Earth MOID = .843169 au 
 Jupiter MOID = 2.91532 au 
 T_jup = 3.800 
[ 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 16.78   n/a MPCxxxxx  
rotation period rot_per 38.4111 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

135528 (2002 AY181)          Discovered 2002-Jan-05 by NEAT at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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