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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301694189627839 4.7731e-08  
a 3.41247643671688 1.9746e-08 au
q 2.968276361725253 1.6718e-07 au
i 14.84543671005248 5.4046e-06 deg
node 27.41170409107644 1.4782e-05 deg
peri 341.3981914273118 2.0802e-05 deg
M 356.5853609106468 1.4498e-05 deg
tp 2458622.339627444616
(2019-May-18.83962744)
9.2731e-05 TDB
period 2302.517388902404
6.30
1.9985e-05
5.472e-08
d
yr
n .156350610742449 1.357e-09 deg/d
Q 3.856676511708508 2.2316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3258  
   data-arc span      27790 days (76.08 yr)  
   first obs. used      1943-11-03  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35389  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:24:02  

Additional Information
 Earth MOID = 1.97208 au 
 Jupiter MOID = 1.61174 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-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

[ 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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