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123754 (2001 AR32)
Classification: Main-belt Asteroid          SPK-ID: 2123754
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2985394016718804 6.3243e-08  
a 2.5778573925297 1.8746e-08 au
q 1.808265388968449 1.7291e-07 au
i 3.543566797521384 4.8599e-06 deg
node 338.3442477465507 5.5276e-05 deg
peri 58.94439488998853 5.6758e-05 deg
M 289.0097058621769 1.5648e-05 deg
tp 2459298.614592100908
(2021-Mar-25.11459210)
6.8688e-05 TDB
period 1511.773608769244
4.14
1.6491e-05
4.515e-08
d
yr
n .2381308933505467 2.5976e-09 deg/d
Q 3.34744939609095 2.4343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      7247 days (19.84 yr)  
   first obs. used      2000-09-27  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:21:43  

Additional Information
 Earth MOID = .818566 au 
 Jupiter MOID = 2.10806 au 
 T_jup = 3.359 
[ 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 15.8   n/a MPO257569  
diameter diameter 3.711 km 0.870 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 101.427 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.039   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123754 (2001 AR32)          Discovered 2001-Jan-04 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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