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109 Felicitas
Classification: Main-belt Asteroid          SPK-ID: 2000109
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2971529978627966 4.8832e-08  
a 2.697284557586714 7.1005e-09 AU
q 1.895778365210795 1.3088e-07 AU
i 7.880803605673212 5.6914e-06 deg
node 3.176221099024615 3.7454e-05 deg
peri 56.36941880183742 3.8553e-05 deg
M 212.7292645421096 7.6201e-06 deg
tp 2457462.415469060312
(2016-Mar-14.91546906)
3.5639e-05 JED
period 1618.037474457015
4.43
6.3891e-06
1.749e-08
d
yr
n .2224917566392024 8.7855e-10 deg/d
Q 3.498790749962633 9.2104e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      52517 days (143.78 yr)  
   first obs. used      1869-10-10  
   last obs. used      2013-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56267  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 11:53:38  

Additional Information
 Earth MOID = .919745 AU 
 T_jup = 3.291 
[ 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 8.75 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
magnitude slope G 0.04   n/a PDS3 (MPC 17257) Fit
diameter diameter 89.44 km 2.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
rotation period rot_per 13.191 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
geometric albedo albedo 0.0699   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
B-V BV .696 mag .010 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=8.46, mean=12.89, max.=24.09) deg.
U-B UB .408 mag .019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=8.46, mean=15.54, max.=26.17) deg.
Tholen spectral type spec_T GC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

109 Felicitas          Discovered 1869-Oct-09 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A911 HA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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