Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
3704 Gaoshiqi (1981 YX1)
Classification: Main-belt Asteroid          SPK-ID: 2003704
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05124555008007103 5.9891e-08  
a 2.410327895850581 1.4838e-08 AU
q 2.286809316954378 1.4633e-07 AU
i 5.890021837802316 6.9478e-06 deg
node 233.7575113840275 5.8452e-05 deg
peri 37.38128525062768 9.0737e-05 deg
M 40.90117277582707 7.2171e-05 deg
tp 2456645.209146244518
(2013-Dec-18.70914624)
0.00027363 JED
period 1366.824067817773
3.74
1.2621e-05
3.455e-08
d
yr
n .2633842997619762 2.4321e-09 deg/d
Q 2.533846474746784 1.5598e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1162  
   data-arc span      22501 days (61.60 yr)  
   first obs. used      1951-11-29  
   last obs. used      2013-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55364  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 14:34:13  

Additional Information
 Earth MOID = 1.27371 AU 
 T_jup = 3.511 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.5 mag n/a PDS3 (MPC 17269)  
rotation period rot_per 9.7787 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2010) http://www.asu.cas.cz/~ppravec/neo.htm]
[Oey, J.; Inasaridze, R.Y.; Kvaratskhelia, O.I.; Ayvazian, V.; et al. (2013) Minor Planet Bul. 40, 169-172.]
SMASSII spectral type spec_B Xk   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3704 Gaoshiqi           Discovered 1981 Dec. 20 at the Purple Mountain Observatory.
Gao Shi-Qi (1905-1988) is considered the founder of science popularization in China. His contraction of encephalitis during a scientific experiment at the University of Chicago in 1928 caused paralysis of his whole body.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990928/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1981 YX1 = 1951 WH1 = 1957 HR = 1958 UB = 1972 HD = 1973 TR = 1977 TK7 = 1977 VH2 = 1979 FL1 = 1980 OJ 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-18 00:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin