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27229 (1999 JX37)
Classification: Main-belt Asteroid          SPK-ID: 2027229
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1919960103053177 4.3692e-08  
a 3.108497860792903 1.8457e-08 au
q 2.511678673478051 1.3474e-07 au
i 16.7979307296189 4.975e-06 deg
node 243.9598261013037 1.4816e-05 deg
peri 182.1746824565505 1.8613e-05 deg
M 96.28241727091158 1.045e-05 deg
tp 2458465.111830280689
(2018-Dec-12.61183028)
5.7756e-05 TDB
period 2001.816599147449
5.48
1.7829e-05
4.881e-08
d
yr
n .179836654443429 1.6017e-09 deg/d
Q 3.705317048107756 2.2001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1794  
   data-arc span      16520 days (45.23 yr)  
   first obs. used      1974-11-12  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43065  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:59:40  

Additional Information
 Earth MOID = 1.52545 au 
 Jupiter MOID = 1.63338 au 
 T_jup = 3.126 
[ 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 12.4   n/a MPO502361  
diameter diameter 9.217 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.77540 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.269   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27229 (1999 JX37)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JX37 = 1974 VF1 = 1985 XH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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