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345 Tercidina (A892 WB)
Classification: Main-belt Asteroid          SPK-ID: 2000345
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 117 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06146925671873955 3.4144e-08  
a 2.3249848811805 3.6656e-09 au
q 2.182069788652028 7.9445e-08 au
i 9.744058322932924 3.495e-06 deg
node 212.6012628921776 2.071e-05 deg
peri 231.3719326793185 3.5045e-05 deg
M 316.6935682242207 2.9135e-05 deg
tp 2459156.268101726062
(2020-Nov-02.76810173)
0.00010485 TDB
period 1294.877327038178
3.55
3.0623e-06
8.384e-09
d
yr
n .2780186141828908 6.5749e-10 deg/d
Q 2.467899973708973 3.8909e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2783  
   data-arc span      46635 days (127.68 yr)  
   first obs. used      1892-11-24  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47931  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:14:35  

Additional Information
 Earth MOID = 1.20968 au 
 Jupiter MOID = 2.68493 au 
 T_jup = 3.553 
[ hide covariance matrix ]
Orbital Elements at Epoch 2454939.5 (2009-Apr-18.0) TDB
Reference: JPL 117 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06043819068141334 3.411e-08  
q 2.18497731640961 7.9184e-08 au
tp 2455267.742392038684
(2010-Mar-12.24239204)
0.00010555 TDB
node 212.7019069945961 2.0686e-05 deg
peri 230.4843153869714 3.5431e-05 deg
i 9.74786624603041 3.497e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2783  
   data-arc span      46635 days (127.68 yr)  
   first obs. used      1892-11-24  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47931  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:14:35  

Additional Information
 Jupiter MOID = 2.68493 au 
 T_jup = 3.553 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.163508497180339E-15 -2.698363635316671E-15 9.23292006367509E-15 -4.957461961250705E-15 2.82755819213786E-14 1.535108806755502E-15
q -2.698363635316671E-15 6.270079770837266E-15 1.059276064934508E-14 1.111942913824086E-14 -5.822615577593616E-14 -3.547031683008976E-15
tp 9.23292006367509E-15 1.059276064934508E-14 1.11412840308539E-8 -7.732893221855834E-12 3.047222469886006E-9 3.246547105500269E-12
node -4.957461961250705E-15 1.111942913824086E-14 -7.732893221855834E-12 4.278931274082761E-10 -4.233605602638161E-10 6.899371252843694E-12
peri 2.82755819213786E-14 -5.822615577593616E-14 3.047222469886006E-9 -4.233605602638161E-10 1.255327700915359E-9 -5.835378321938466E-12
i 1.535108806755502E-15 -3.547031683008976E-15 3.246547105500269E-12 6.899371252843694E-12 -5.835378321938466E-12 1.222927420177022E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.9   n/a MPO502156 IRAS observations used: 13
magnitude slope G 0.10   n/a PDS3 (MPC 17258) Fit
diameter diameter 90.243 km 24.561 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 12.371 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Garlitz, J. (2013) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.052   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.729   0.019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=5.68, mean=8.47, max.=10.86) deg.
U-B UB 0.411   0.026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=5.68, mean=7.67, max.=10.75) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
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)

345 Tercidina (A892 WB)          Discovered 1892-Nov-23 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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