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135215 (2001 RT85)
Classification: Main-belt Asteroid          SPK-ID: 2135215
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1492538266042714 4.5737e-08  
a 2.395423570261849 9.2624e-09 au
q 2.037897436062202 1.0889e-07 au
i 2.320169864596815 5.7525e-06 deg
node 203.0175642793951 8.908e-05 deg
peri 218.286579795739 9.1036e-05 deg
M 21.20293341418859 1.5998e-05 deg
tp 2459120.743634774674
(2020-Sep-28.24363477)
6.0177e-05 TDB
period 1354.165997705951
3.71
7.8542e-06
2.15e-08
d
yr
n .2658462851746865 1.5419e-09 deg/d
Q 2.752949704461495 1.0645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      10585 days (28.98 yr)  
   first obs. used      1992-03-25  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51292  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:20:51  

Additional Information
 Earth MOID = 1.05057 au 
 Jupiter MOID = 2.55529 au 
 T_jup = 3.513 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.41   n/a MPCxxxxx  
diameter diameter 3.109 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.36 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]
geometric albedo albedo 0.055   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

135215 (2001 RT85)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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