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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1307108123223037 1.7696e-08  
a 3.414671688882468 1.6589e-08 au
q 2.968337178614668 6.4178e-08 au
i 14.84136428210434 6.9248e-07 deg
node 27.39736124098488 2.0811e-06 deg
peri 341.530474740193 7.4503e-06 deg
M 90.20404193804033 9.5312e-06 deg
tp 2458623.008820799928
(2019-May-19.50882080)
6.022e-05 TDB
period 2304.73956649112
6.31
1.6795e-05
4.598e-08
d
yr
n .1561998610316248 1.1383e-09 deg/d
Q 3.861006199150268 1.8758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      4062  
   data-arc span      28263 days (77.38 yr)  
   first obs. used      1943-11-03  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .33387  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:41:12  

Additional Information
 Earth MOID = 1.97148 au 
 Jupiter MOID = 1.61154 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 10.91   n/a MPCxxxxx  
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. 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:
[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

[ show close-approach data ]
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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