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3024 Hainan (1981 UW9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003024
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305667459652051 4.7258e-08  
a 3.414036886562476 1.9513e-08 au
q 2.968277199678834 1.6527e-07 au
i 14.8422822156141 5.3404e-06 deg
node 27.40715841249752 1.4528e-05 deg
peri 341.4588670290767 2.0545e-05 deg
M 59.03650339448572 1.4316e-05 deg
tp 2458622.650486846346
(2019-May-19.15048685)
9.1526e-05 TDB
period 2304.0969046961
6.31
1.9754e-05
5.408e-08
d
yr
n .156243428506095 1.3395e-09 deg/d
Q 3.859796573446119 2.2061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3375  
   data-arc span      27853 days (76.26 yr)  
   first obs. used      1943-11-03  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:36:49  

Additional Information
 Earth MOID = 1.97287 au 
 Jupiter MOID = 1.6117 au 
 T_jup = 3.077 
[ 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 10.8   n/a MPO416741  
diameter diameter 37.189 km 0.516 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.746 h n/a LCDB (Rev. 2019-August); 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:
[Li, B.; Zhao, H.; Han, X.L.; Liu, W.; et al. (2013) Minor Planet Bull. 40, 43-44.]
[Simpson, G.; Chong, E.; Gerhardt, M.; Gorsky, S.; et al. (2013) Minor Planet Bull. 146-151.]
geometric albedo albedo 0.067   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3024 Hainan (1981 UW9)          Discovered 1981-Oct-23 by Purple Mountain Observatory at Nanking
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 UW9 = 1943 VG = 1949 SD1 = 1956 VP = 1962 WH = 1968 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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