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JPL Small-Body Database Browser
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34880 (2001 UN45)
Classification: Outer Main-belt Asteroid          SPK-ID: 2034880
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05346723471070348 5.3021e-08  
a 3.338049214931518 3.3019e-08 au
q 3.159572954080895 1.7806e-07 au
i 4.845744792328809 5.8891e-06 deg
node 172.6479518590804 5.7244e-05 deg
peri 193.4014411199083 7.3794e-05 deg
M 339.1122150049051 4.8806e-05 deg
tp 2458729.749067306067
(2019-Sep-03.24906731)
0.00030253 TDB
period 2227.601645703968
6.10
3.3052e-05
9.049e-08
d
yr
n .1616087870532313 2.3979e-09 deg/d
Q 3.516525475782141 3.4784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      10066 days (27.56 yr)  
   first obs. used      1991-01-21  
   last obs. used      2018-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59974  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 19:12:37  

Additional Information
 Earth MOID = 2.15674 au 
 Jupiter MOID = 1.79437 au 
 T_jup = 3.153 
[ 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 14.3   n/a MPO452659  
diameter diameter 6.566 km 0.438 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.898 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.094   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34880 (2001 UN45)          Discovered 2001-Oct-17 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 UN45 = 1994 PM35 = 2000 QS36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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