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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457374.5 (2015-Dec-18.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3227700272144769 3.3582e-08  
q 2.164594329406934 1.0663e-07 au
tp 2456366.605725637221
(2013-Mar-15.10572564)
3.6857e-05 TDB
node 198.3626922286172 9.1754e-06 deg
peri 300.7406494810575 1.1409e-05 deg
i 26.51160578259453 4.9339e-06 deg
  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
 Jupiter MOID = 1.35731 au 
 T_jup = 2.955 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.127737078962949E-15 -3.560075796598809E-15 1.601264222201909E-13 -6.260363821018652E-15 2.480516053595559E-14 -3.589652248509155E-15
q -3.560075796598809E-15 1.136953198379743E-14 -5.569114710581826E-13 1.532154547893323E-14 -6.790906088787001E-14 8.920126247853897E-15
tp 1.601264222201909E-13 -5.569114710581826E-13 1.358424237060373E-9 3.511129301278329E-12 2.605542622989698E-10 -1.873755432745641E-12
node -6.260363821018652E-15 1.532154547893323E-14 3.511129301278329E-12 8.418740873860157E-11 -7.502154814078483E-11 7.116076687509794E-12
peri 2.480516053595559E-14 -6.790906088787001E-14 2.605542622989698E-10 -7.502154814078483E-11 1.301765959916102E-10 -7.112393375188796E-12
i -3.589652248509155E-15 8.920126247853897E-15 -1.873755432745641E-12 7.116076687509794E-12 -7.112393375188796E-12 2.434338647409036E-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 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

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