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144 Vibilia (A875 LA)
Classification: Main-belt Asteroid          SPK-ID: 2000144
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 100 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2347457939051394 3.7244e-08  
a 2.655401408646705 8.588e-09 au
q 2.032057096837109 9.7685e-08 au
i 4.814051478210597 4.1958e-06 deg
node 76.19486914978489 5.1411e-05 deg
peri 294.6089644012494 5.223e-05 deg
M 98.46567395969831 1.1493e-05 deg
tp 2458568.209137391712
(2019-Mar-25.70913739)
4.9352e-05 TDB
period 1580.497083711432
4.33
7.6673e-06
2.099e-08
d
yr
n .2277764405326351 1.105e-09 deg/d
Q 3.278745720456302 1.0604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2716  
   data-arc span      42160 days (115.43 yr)  
   first obs. used      1905-05-26  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:32:55  

Additional Information
 Earth MOID = 1.03786 au 
 Jupiter MOID = 2.19587 au 
 T_jup = 3.343 
[ 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 8.1   n/a MPO502154 IRAS observations used: 15
magnitude slope G 0.17   n/a PDS3 (MPC 17257) Fit
diameter diameter 142.38 km 2.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
rotation period rot_per 13.819 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Zappala, V.; Scaltriti, F.; Di Martino, M. (1983) Icarus 56, 325-344.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.]
geometric albedo albedo 0.0597   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
B-V BV 0.727   0.027 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=1.88, mean=19.09, max.=27.75) deg.
U-B UB 0.402   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=1.88, mean=19.09, max.=27.75) deg.
Tholen spectral type spec_T C   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)

144 Vibilia (A875 LA)          Discovered 1875-Jun-03 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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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
1929-May-10 22:31 < 00:01 David 0.0451591129681812 0.0451567144986799 0.0451615117622631 4.70380094246744 4.70380087134794 2425742.438207336 0.931319511147567 231.021832557946 31.3205713333769 59.7374519583583 186761.447857503 T 100 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:03 2020-Nov-13 04:33
2052-Jan-02 17:37 00:02 Cybel 0.0432876202643103 0.0432863353680336 0.0432889051823158 2.9228564133841 2.92285636530627 2470539.234371881 2.03268198303053 82.7025156565924 24.6395979012924 -41.5430172297121 183715.835930729 T 100 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:03 2020-Nov-13 04:33
2093-Oct-04 07:21 < 00:01 David 0.0192123373717505 0.0192071223367304 0.0192175524526432 5.13175614504829 5.13175599182075 2485789.806154792 0.600466440602196 264.165227412721 35.3544508132608 -10.3884039160805 18136.4635050171 T 100 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:03 2020-Nov-13 04:33
2147-Mar-09 21:11 00:05 Cybel 0.0206652285940176 0.0206611030219291 0.0206693541894798 2.82874743280504 2.82874732874557 2505303.382788999 5.10818464917818 208.495732043555 28.1305825874428 -9.75361719985323 23641.9363082334 T 100 CATAB v2.0f-lin.ifort 2020-Nov-13 04:33:03 2020-Nov-13 04:33
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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