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4325 Guest (1982 HL)
Classification: Main-belt Asteroid          SPK-ID: 2004325
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09665810641131832 2.0914e-08  
a 2.749350196127543 1.0622e-08 au
q 2.483603212308268 5.6827e-08 au
i 5.759166804889762 1.3403e-07 deg
node 60.01104514018238 5.1691e-06 deg
peri 109.9172872119537 8.2679e-06 deg
M 202.6528340136204 1.1329e-05 deg
tp 2459928.279709240557
(2022-Dec-14.77970924)
5.4946e-05 TDB
period 1665.112261057693
4.56
9.6499e-06
2.642e-08
d
yr
n .2162016390242211 1.253e-09 deg/d
Q 3.015097179946818 1.1649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2670  
   data-arc span      16555 days (45.33 yr)  
   first obs. used      1975-10-14  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45297  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:12:39  

Additional Information
 Earth MOID = 1.49599 au 
 Jupiter MOID = 1.96455 au 
 T_jup = 3.332 
[ 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 12.58   n/a MPCxxxxx  
diameter diameter 9.247 km 0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.30406 h n/a LCDB (Rev. 2020-October); 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 0.188   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4325 Guest (1982 HL)          Discovered 1982-Apr-18 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 HL = 1975 TP5 = 1975 VM7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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