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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301694263644321 4.8478e-08  
a 3.412476432475577 2.032e-08 au
q 2.968276332778087 1.7042e-07 au
i 14.84543619044169 5.4715e-06 deg
node 27.41170642924472 1.5271e-05 deg
peri 341.3981871456511 2.1258e-05 deg
M 356.5853639446048 1.4857e-05 deg
tp 2458622.339607999063
(2019-May-18.83960800)
9.5043e-05 TDB
period 2302.51738460977
6.30
2.0566e-05
5.631e-08
d
yr
n .156350611033937 1.3965e-09 deg/d
Q 3.856676532173066 2.2965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3208  
   data-arc span      27784 days (76.07 yr)  
   first obs. used      1943-11-03  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35603  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:43:21  

Additional Information
 Earth MOID = 1.97208 au 
 Jupiter MOID = 1.61174 au 
 T_jup = 3.077 
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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-January); 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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