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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271069183513814 3.8508e-08  
a 3.209628383371479 2.1688e-08 AU
q 2.801662410508004 1.2448e-07 AU
i 9.295462041512843 5.2033e-06 deg
node 259.3530330079279 2.9035e-05 deg
peri 142.19387494 3.4932e-05 deg
M 309.8830676848049 2.0034e-05 deg
tp 2457292.890012400601
(2015-Sep-27.39001240)
0.0001178 JED
period 2100.296239247313
5.75
2.1289e-05
5.829e-08
d
yr
n .1714043920437689 1.7374e-09 deg/d
Q 3.617594356234954 2.4445e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1132  
   data-arc span      39024 days (106.84 yr)  
   first obs. used      1908-01-01  
   last obs. used      2014-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56538  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:44:50  

Additional Information
 Earth MOID = 1.81759 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 9.7 mag n/a MPO265961  
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. 2014-Mar-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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