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373 Melusina (A893 RA)
Classification: Main-belt Asteroid          SPK-ID: 2000373
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 52 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1379382969822174 2.2791e-08  
a 3.120022524623382 1.0306e-08 au
q 2.689651931030674 6.8948e-08 au
i 15.37840570183614 9.5574e-07 deg
node 3.64459723540746 1.3272e-06 deg
peri 348.698075919657 7.2921e-06 deg
M 52.67239549090122 5.7199e-06 deg
tp 2458905.979458519837
(2020-Feb-26.47945852)
3.1658e-05 TDB
period 2012.959424850427
5.51
9.9741e-06
2.731e-08
d
yr
n .1788411607088155 8.8615e-10 deg/d
Q 3.550393118216089 1.1728e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3411  
   data-arc span      43437 days (118.92 yr)  
   first obs. used      1902-04-04  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:46:58  

Additional Information
 Earth MOID = 1.68512 au 
 Jupiter MOID = 1.90076 au 
 T_jup = 3.147 
[ 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 9.18   n/a E2021B10 IRAS observations used: 18
diameter diameter 98.695 km 0.947 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 12.97 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Ivarsen, K.; Willis, S.; Ingleby, L.; Matthews, D.; Simet, M. (2004) Minor Planet Bull. 31, 29-33.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.040   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.669   0.017 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.06, mean=14.28, max.=21.50) deg.
U-B UB 0.371   0.024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.06, mean=14.28, max.=21.50) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

373 Melusina (A893 RA)          Discovered 1893-Sep-15 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A893 RA = 1937 TL = 1948 TZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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