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1001 Gaussia (A923 PD)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001001
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222034782802469 3.0372e-08  
a 3.211194658259772 1.4334e-08 au
q 2.818775501585479 9.8539e-08 au
i 9.318002691490966 3.728e-06 deg
node 259.1485558862222 2.2999e-05 deg
peri 145.2351942913894 2.874e-05 deg
M 289.0615276398934 1.7407e-05 deg
tp 2459414.669112132954
(2021-Jul-19.16911213)
0.00010206 TDB
period 2101.833820313737
5.75
1.4073e-05
3.853e-08
d
yr
n .1712790024219248 1.1468e-09 deg/d
Q 3.603613814934065 1.6085e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2674  
   data-arc span      41122 days (112.59 yr)  
   first obs. used      1908-01-01  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43912  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:26:11  

Additional Information
 Earth MOID = 1.83474 au 
 Jupiter MOID = 1.7813 au 
 T_jup = 3.159 
[ 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 9.7   n/a MPO435705  
diameter diameter 72.711 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 20.99 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Aznar, A.; Garceran, A.C.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 174-181.]
geometric albedo albedo 0.041   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.689   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=3.64, mean=12.51, max.=19.85) deg.
U-B UB 0.265   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 (A923 PD)          Discovered 1923-Aug-08 by Belyavskij, S. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A923 PD = A907 XC = A911 MD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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