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129334 (2005 UN68)
Classification: Main-belt Asteroid          SPK-ID: 2129334
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1425833485821346 9.0471e-08  
a 2.32357935172082 1.0682e-08 au
q 1.99227562705616 2.1302e-07 au
i 7.505204700393187 6.2353e-06 deg
node 133.6106451349833 6.6818e-05 deg
peri 211.1579862129725 7.0858e-05 deg
M 84.93816287019887 2.2014e-05 deg
tp 2458695.264492974706
(2019-Jul-30.76449297)
7.982e-05 TDB
period 1293.703310925501
3.54
8.9214e-06
2.443e-08
d
yr
n .2782709118541716 1.919e-09 deg/d
Q 2.65488307638548 1.2205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      274  
   data-arc span      9343 days (25.58 yr)  
   first obs. used      1994-06-09  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57857  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 17:54:06  

Additional Information
 Earth MOID = .988086 au 
 Jupiter MOID = 2.73191 au 
 T_jup = 3.551 
[ 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 17.0   n/a MPO493740  
rotation period rot_per 5.16 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.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

129334 (2005 UN68)          Discovered 2005-Oct-22 by NEAT at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2005 UN68 = 1994 LN2 = 1996 AM9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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