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134380 (1995 YH4)
Classification: Main-belt Asteroid          SPK-ID: 2134380
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3213937802958376 3.3624e-08  
a 3.19968079454622 1.6985e-08 au
q 2.171323288247021 1.0665e-07 au
i 26.49213006866386 4.9332e-06 deg
node 198.2225689696487 9.1768e-06 deg
peri 301.1393799424189 1.1449e-05 deg
M 128.4279392766823 7.1209e-06 deg
tp 2458454.711947073879
(2018-Dec-02.21194707)
3.9037e-05 TDB
period 2090.539648658443
5.72
1.6646e-05
4.557e-08
d
yr
n .1722043397890214 1.3712e-09 deg/d
Q 4.228038300845419 2.2444e-08 au
  Orbit Determination Parameters
   # obs. used (total)      850  
   data-arc span      9028 days (24.72 yr)  
   first obs. used      1995-12-28  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:07  

Additional Information
 Earth MOID = 1.28191 au 
 Jupiter MOID = 1.35731 au 
 T_jup = 2.955 
[ 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 14.4   n/a MPO299749  
rotation period rot_per 44.6395 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.]

134380 (1995 YH4)          Discovered 1995-Dec-28 by McNaught, R. H. at Siding Spring
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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