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1001 Gaussia (1923 OA)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001001
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1274692090502552 5.4416e-08  
a 3.209970083074241 2.2537e-08 AU
q 2.800797735509785 1.6969e-07 AU
i 9.296731452192756 6.8557e-06 deg
node 259.3612701256621 3.502e-05 deg
peri 142.0976560333413 4.4214e-05 deg
M 207.1883888280439 2.7347e-05 deg
tp 2457292.169184643266
(2015-Sep-26.66918464)		 0.00016276 JED
period 2100.631647096237
5.75		 2.2123e-05
6.057e-08		 d
yr
n .1713770239049946 1.8049e-09 deg/d
Q 3.619142430638696 2.541e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      30966 days (84.78 yr)  
   first obs. used      1928-07-11  
   last obs. used      2013-04-22  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .56223  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 12:40:47  

Additional Information
 Earth MOID = 1.81635 AU 
 T_jup = 3.159 
[ 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 9.77 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
diameter diameter 74.67 km 3.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 9.17 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Bonzo, D.; Carbognani, A. (2010) Minor Planet Bul. 37, 93-95.]
geometric albedo albedo 0.0392   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
B-V BV .689 mag .031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=6; phase (min.=3.64, mean=12.51, max.=19.85) deg.
U-B UB .265 mag .034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=6; phase (min.=3.64, mean=12.51, max.=19.85) deg.
Tholen spectral type spec_T PC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

1001 Gaussia (1923 OA)          Discovered 1923-Aug-08 by Belyavskij, S. at Simeis (094)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1923 OA = A907 XC = A911 MD 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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