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103055 (1999 XR134)
Classification: Main-belt Asteroid          SPK-ID: 2103055
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09706995250119246 3.6992e-08  
a 2.632807352216241 1.4551e-08 au
q 2.37724086759182 1.0224e-07 au
i 20.73291789644039 6.6743e-06 deg
node 238.4126299594499 1.0826e-05 deg
peri 254.7044652156955 3.7207e-05 deg
M 287.3289178095245 3.7223e-05 deg
tp 2459515.482319518852
(2021-Oct-27.98231952)
0.00016222 TDB
period 1560.368052997678
4.27
1.2936e-05
3.542e-08
d
yr
n .2307147979019381 1.9127e-09 deg/d
Q 2.888373836840661 1.5964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      806  
   data-arc span      7752 days (21.22 yr)  
   first obs. used      1999-10-21  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:10  

Additional Information
 Earth MOID = 1.4739 au 
 Jupiter MOID = 2.39989 au 
 T_jup = 3.301 
[ 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 14.84   n/a E2021B55  
rotation period rot_per 4.604 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:
[Pravec, P.; Fatka, P.; Vokrouhlický, D.; Scheirich, P.; et al. (2019) Icarus 333, 429-463.]

103055 (1999 XR134)          Discovered 1999-Dec-05 by LINEAR at Socorro
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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