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109 Felicitas (A869 TA)
Classification: Main-belt Asteroid          SPK-ID: 2000109
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2993064454813516 1.6426e-08  
a 2.695115946222658 7.6355e-09 au
q 1.888450372198645 4.5108e-08 au
i 7.844638941491878 9.9755e-07 deg
node 2.765151458416115 4.5428e-06 deg
peri 57.60979271025143 5.63e-06 deg
M 25.53727839564909 2.6902e-06 deg
tp 2459085.859857410670
(2020-Aug-24.35985741)
1.1778e-05 TDB
period 1616.08651841264
4.42
6.8678e-06
1.88e-08
d
yr
n .2227603509455675 9.4665e-10 deg/d
Q 3.501781520246672 9.9209e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2375  
   data-arc span      9065 days (24.82 yr)  
   first obs. used      1996-05-28  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35303  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:52:10  

Additional Information
 Earth MOID = .913317 au 
 Jupiter MOID = 1.94648 au 
 T_jup = 3.291 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457353.5 (2015-Nov-27.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2968619962608055 1.6028e-08  
q 1.896544866367647 4.3752e-08 au
tp 2457462.573414694849
(2016-Mar-15.07341469)
9.6572e-06 TDB
node 3.161905991631939 4.495e-06 deg
peri 56.38325250723035 5.6372e-06 deg
i 7.881309820470228 1.0013e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2375  
   data-arc span      9065 days (24.82 yr)  
   first obs. used      1996-05-28  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35303  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:52:10  

Additional Information
 Jupiter MOID = 1.94648 au 
 T_jup = 3.291 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.569070533653429E-16 -6.959970819399625E-16 -1.734947357163907E-14 -5.04262721473331E-15 2.23234365234413E-14 -2.027190155536078E-15
q -6.959970819399625E-16 1.914241292015613E-15 4.847256314799294E-14 1.315438075976039E-14 -6.090537386554236E-14 5.353801971284738E-15
tp -1.734947357163907E-14 4.847256314799294E-14 9.326073410752174E-11 -5.606198672015242E-12 3.032318128273655E-11 -1.991763024548653E-12
node -5.04262721473331E-15 1.315438075976039E-14 -5.606198672015242E-12 2.020496667557523E-11 -2.133850864178459E-11 1.862865904726717E-12
peri 2.23234365234413E-14 -6.090537386554236E-14 3.032318128273655E-11 -2.133850864178459E-11 3.177784705213901E-11 -2.494532069204962E-12
i -2.027190155536078E-15 5.353801971284738E-15 -1.991763024548653E-12 1.862865904726717E-12 -2.494532069204962E-12 1.002571344068631E-12

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 9.05   n/a E2021B10 IRAS observations used: 15
magnitude slope G 0.04   n/a PDS3 (MPC 17257) Fit
diameter diameter 82.588 km 0.616 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.191 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.036   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.696   0.010 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=8.46, mean=12.89, max.=24.09) deg.
U-B UB 0.408   0.019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 (A869 TA)          Discovered 1869-Oct-09 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A869 TA = A911 HA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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