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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .2414006433459769 3.6306e-08  
a 3.114407886717559 1.8993e-08 au
q 2.362587819222156 1.1306e-07 au
i 15.19200010074836 5.5013e-06 deg
node 226.72101265 1.5708e-05 deg
peri 89.30634037181649 1.964e-05 deg
M 74.02508385680743 1.1148e-05 deg
tp 2458587.701538625397
(2019-Apr-14.20153863)
6.23e-05 TDB
period 2007.528237081369
5.50
1.8364e-05
5.028e-08
d
yr
n .1793249994447817 1.6404e-09 deg/d
Q 3.866227954212962 2.3578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1893  
   data-arc span      12417 days (34.00 yr)  
   first obs. used      1986-10-28  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:27:18  

Additional Information
 Earth MOID = 1.4096 au 
 Jupiter MOID = 1.77434 au 
 T_jup = 3.120 
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Orbital Elements at Epoch 2457228.5 (2015-Jul-25.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2451162662193472 3.6521e-08  
q 2.34726988887263 1.1428e-07 au
tp 2456583.538468753286
(2013-Oct-18.03846875)
6.5342e-05 TDB
node 226.82104980898 1.5753e-05 deg
peri 89.45359895992644 1.9578e-05 deg
i 15.18320389757759 5.5039e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1893  
   data-arc span      12417 days (34.00 yr)  
   first obs. used      1986-10-28  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:27:18  

Additional Information
 Jupiter MOID = 1.77434 au 
 T_jup = 3.120 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.333769233246933E-15 -4.140404738052256E-15 1.036593553281912E-12 -2.923648436989938E-15 1.799485989573572E-13 -2.270042589001906E-15
q -4.140404738052256E-15 1.306033175609274E-14 -3.583663665823291E-12 8.580207509061474E-15 -6.102870895355872E-13 7.824476925403537E-15
tp 1.036593553281912E-12 -3.583663665823291E-12 4.269623152849266E-9 -2.837236035156637E-12 7.772146208242864E-10 -4.422097145035738E-12
node -2.923648436989938E-15 8.580207509061474E-15 -2.837236035156637E-12 2.481623939175157E-10 -2.39633755466244E-10 -3.317612673876318E-11
peri 1.799485989573572E-13 -6.102870895355872E-13 7.772146208242864E-10 -2.39633755466244E-10 3.832987451646202E-10 3.113235984435021E-11
i -2.270042589001906E-15 7.824476925403537E-15 -4.422097145035738E-12 -3.317612673876318E-11 3.113235984435021E-11 3.029270298456786E-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

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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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