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26724 (2001 HU8)
Classification: Main-belt Asteroid          SPK-ID: 2026724
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2414006424346126 3.6591e-08  
a 3.114407887083569 1.9087e-08 au
q 2.362587822338171 1.1413e-07 au
i 15.19200018141766 5.5524e-06 deg
node 226.7210127157445 1.5903e-05 deg
peri 89.30633947343895 1.9905e-05 deg
M 74.02508453660147 1.1257e-05 deg
tp 2458587.701534761779
(2019-Apr-14.20153476)
6.2951e-05 TDB
period 2007.528237435261
5.50
1.8455e-05
5.053e-08
d
yr
n .1793249994131698 1.6485e-09 deg/d
Q 3.866227951828968 2.3695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1832  
   data-arc span      12151 days (33.27 yr)  
   first obs. used      1986-10-28  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44312  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:50:22  

Additional Information
 Earth MOID = 1.4096 au 
 Jupiter MOID = 1.77434 au 
 T_jup = 3.120 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457193.5 (2015-Jun-20.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2451458737781397 3.683e-08  
q 2.347137765222774 1.1546e-07 au
tp 2456583.557527416074
(2013-Oct-18.05752742)
6.6195e-05 TDB
node 226.8221799364301 1.5948e-05 deg
peri 89.45059717232877 1.9839e-05 deg
i 15.18350130782717 5.5551e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1832  
   data-arc span      12151 days (33.27 yr)  
   first obs. used      1986-10-28  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44312  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:50:22  

Additional Information
 Jupiter MOID = 1.77434 au 
 T_jup = 3.120 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.356433437711384E-15 -4.218881487072397E-15 1.08536668919904E-12 -3.032668152382823E-15 1.899375503601847E-13 -2.281399221840848E-15
q -4.218881487072397E-15 1.333192074483126E-14 -3.752990876181551E-12 8.766082373682165E-15 -6.448118618045354E-13 7.942078730113905E-15
tp 1.08536668919904E-12 -3.752990876181551E-12 4.381734554669329E-9 -2.856430113106303E-12 7.997787016632902E-10 -4.517964202028502E-12
node -3.032668152382823E-15 8.766082373682165E-15 -2.856430113106303E-12 2.543454658808664E-10 -2.456084150757884E-10 -3.496707485281183E-11
peri 1.899375503601847E-13 -6.448118618045354E-13 7.997787016632902E-10 -2.456084150757884E-10 3.936052532927846E-10 3.28458146710702E-11
i -2.281399221840848E-15 7.942078730113905E-15 -4.517964202028502E-12 -3.496707485281183E-11 3.28458146710702E-11 3.085942240143702E-11

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 12.9   n/a MPO502357  
diameter diameter 8.778 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.43 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.110   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26724 (2001 HU8)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HU8 = 1986 UC3 = 1986 WH5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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