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3666 Holman (1979 HP)
Classification: Main-belt Asteroid          SPK-ID: 2003666
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288465084454676 1.7274e-08  
a 3.115469539840286 1.4252e-08 au
q 2.714052167463657 5.7448e-08 au
i 2.364879158180284 4.9478e-07 deg
node 120.3155399419933 1.4197e-05 deg
peri 53.92606377047996 1.6112e-05 deg
M 263.1052128481898 9.5864e-06 deg
tp 2459937.106923512149
(2022-Dec-23.60692351)
5.5236e-05 TDB
period 2008.554827200917
5.50
1.3782e-05
3.773e-08
d
yr
n .1792333448530698 1.2299e-09 deg/d
Q 3.516886912216915 1.6088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3203  
   data-arc span      30049 days (82.27 yr)  
   first obs. used      1938-11-28  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43993  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:06:05  

Additional Information
 Earth MOID = 1.7207 au 
 Jupiter MOID = 1.44537 au 
 T_jup = 3.204 
[ 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 12.33   n/a E2021B10  
diameter diameter 20.304 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 35.531 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.066   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3666 Holman (1979 HP)          Discovered 1979-Apr-19 by Muzzio, J. C. at Cerro Tololo
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1979 HP = 1938 WQ = 1982 VH1 = 1984 CB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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