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101104 (1998 RC42)
Classification: Main-belt Asteroid          SPK-ID: 2101104
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1274438386668635 4.9974e-08  
a 2.698642826058966 1.433e-08 au
q 2.354717425115219 1.3949e-07 au
i 3.448091107129116 3.9892e-06 deg
node 242.3428803976056 7.8356e-05 deg
peri 133.2446887691754 8.0432e-05 deg
M 306.7976476603295 1.5664e-05 deg
tp 2459239.801198271032
(2021-Jan-25.30119827)
7.0494e-05 TDB
period 1619.259818204217
4.43
1.2898e-05
3.531e-08
d
yr
n .2223238024885007 1.7708e-09 deg/d
Q 3.042568227002714 1.6156e-08 au
  Orbit Determination Parameters
   # obs. used (total)      550  
   data-arc span      8069 days (22.09 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:23  

Additional Information
 Earth MOID = 1.35767 au 
 Jupiter MOID = 2.43104 au 
 T_jup = 3.354 
[ 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 15.9   n/a MPO436471  
diameter diameter 4.416 km 1.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.80 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]
geometric albedo albedo 0.043   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101104 (1998 RC42)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 RC42 = 2003 YA55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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