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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 ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2991395198364959 1.1188e-08  
a 2.69447254787079 7.9075e-09 au
q 1.888449323688102 3.1317e-08 au
i 7.844852339796214 4.4446e-07 deg
node 2.768344609132773 1.9466e-06 deg
peri 57.60728068072942 2.7183e-06 deg
M 340.9781110396719 1.7128e-06 deg
tp 2459085.861141305123
(2020-Aug-24.36114130)
8.0014e-06 TDB
period 1615.507846457017
4.42
7.1116e-06
1.947e-08
d
yr
n .2228401432958179 9.8096e-10 deg/d
Q 3.500495772053478 1.0273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2303  
   data-arc span      8938 days (24.47 yr)  
   first obs. used      1996-05-28  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-21 09:40:44  

Additional Information
 Earth MOID = .914008 au 
 Jupiter MOID = 1.94682 au 
 T_jup = 3.292 
[ 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 9.0   n/a MPO492749 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1912-Apr-12 21:17 00:01 Jupiter 1.94573771445426 1.94573758926536 1.94573783964334 0.896297564060462 n/a 2419505.387119707 1.36106229131975 43.4763447025933 4.47579607540448 -84.2245223429334 64691211.5556835 F 39 CATAB v2.0f-lin.ifort 2020-Dec-21 09:40:51 2020-Dec-21 09:40
1947-Jul-29 11:52 < 00:01 Jupiter 1.95467185842644 1.95467173904755 1.95467197780688 1.08894971839378 0.564930813517839 2432395.994364327 0.872102021994134 684.658269032332 117.955412982205 -8.76598566962011 2861929.75976093 T 39 CATAB v2.0f-lin.ifort 2020-Dec-21 09:40:51 2020-Dec-21 09:40
1982-Nov-12 20:47 < 00:01 Jupiter 1.986549140273 1.98654903584493 1.98654924470197 1.33902863037694 0.96965973166244 2445286.365999564 0.410443742990118 110.43319320196 41.4551589905373 -53.6058430366749 6927521.94132081 T 39 CATAB v2.0f-lin.ifort 2020-Dec-21 09:40:51 2020-Dec-21 09:40
2173-Oct-12 13:36 00:02 Jupiter 1.96589316039613 1.96589276127299 1.96589355951945 0.879011696522667 n/a 2515017.066557779 2.00709511902721 37.4862089905953 5.24816701086126 58.8529845147759 48116933.1527891 F 39 CATAB v2.0f-lin.ifort 2020-Dec-21 09:40:51 2020-Dec-21 09:40

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