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12512 Split (1998 HW7)
Classification: Main-belt Asteroid          SPK-ID: 2012512
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .191336495303033 3.3405e-08  
a 2.269566201646803 5.3167e-09 au
q 1.835315358765488 7.5651e-08 au
i 5.068956437818873 3.3104e-06 deg
node 224.3892162154032 4.1684e-05 deg
peri 84.49645374795834 4.2693e-05 deg
M 94.97790648184377 8.4934e-06 deg
tp 2458671.017159318401
(2019-Jul-06.51715932)
2.9543e-05 TDB
period 1248.856992526468
3.42
4.3883e-06
1.201e-08
d
yr
n .2882635899501281 1.0129e-09 deg/d
Q 2.703817044528119 6.3339e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1692  
   data-arc span      12817 days (35.09 yr)  
   first obs. used      1985-09-19  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49642  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:52:27  

Additional Information
 Earth MOID = .82935 au 
 Jupiter MOID = 2.56475 au 
 T_jup = 3.584 
[ 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 14.7   n/a MPO502264  
diameter diameter 4.626 km 0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.7781 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.119   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12512 Split           Discovered 1998 Apr. 21 by K. Korlevic and M. Dusić at the Visnjan Observatory.
Split is the largest Dalmatian city and the second-largest urban center in Croatia. Located on the shores of the eastern Adriatic Sea, it is a vital link to the numerous surrounding islands. The historic city of Split is built around the "Palace of Diocletian", the world's best preserved Roman palace.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1998 HW7 = 1985 SE3 = 1985 SQ5 = 1995 MF2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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