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3929 Carmelmaria (1981 WG9)
Classification: Main-belt Asteroid          SPK-ID: 2003929
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368344413543154 2.6414e-08  
a 2.38023583872933 7.109e-09 au
q 2.054537597445282 6.2096e-08 au
i 2.890448952640905 5.7822e-07 deg
node 153.1414638991344 1.469e-05 deg
peri 221.8317650691988 1.4736e-05 deg
M 255.1454097751758 4.7145e-06 deg
tp 2459591.172964848280
(2022-Jan-11.67296485)
1.8978e-05 TDB
period 1341.307681846092
3.67
6.0091e-06
1.645e-08
d
yr
n .2683947947755869 1.2024e-09 deg/d
Q 2.705934080013378 8.0817e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2108  
   data-arc span      24664 days (67.53 yr)  
   first obs. used      1953-01-09  
   last obs. used      2020-07-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47777  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:44:19  

Additional Information
 Earth MOID = 1.05488 au 
 Jupiter MOID = 2.7581 au 
 T_jup = 3.524 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.71   n/a E2021B10  
diameter diameter 5.953 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.163   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3929 Carmelmaria           Discovered 1981 Nov. 16 by P. Jekabsons at the Perth Observatory.
Named in honor of Carmel Maria Borg (nee Materazzo), secretary at the Perth Observatory and administrative assistant to three directors over 17 years. Her devotion to observatory projects, attention to detail and public-relations skills have seen the Perth Observatory through some turbulent times and played a large part in the successful interaction the observatory enjoys with the local community. She has also played a major role in preserving many of the observatory's historical documents and artifacts. Name suggested and citation provided by J. Biggs and P. Birch
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

Alternate Designations
 1981 WG9 = 1977 RH8 = 1981 UM15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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