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JPL Small-Body Database Browser
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178 Belisana
Classification: Main-belt Asteroid          SPK-ID: 2000178
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04288955170366866 3.601e-08  
a 2.459928702454725 6.9882e-09 au
q 2.354423463183454 8.8171e-08 au
i 1.893683311949898 4.0799e-06 deg
node 51.09283188484663 0.00012709 deg
peri 211.3572206272492 0.00013717 deg
M 118.5166732573283 5.1945e-05 deg
tp 2458536.562841384980
(2019-Feb-22.06284139)
0.00020328 TDB
period 1409.23106016292
3.86
6.0051e-06
1.644e-08
d
yr
n .2554584625450852 1.0886e-09 deg/d
Q 2.565433941725996 7.2879e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2881  
   data-arc span      48968 days (134.07 yr)  
   first obs. used      1885-12-11  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46674  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:17:27  

Additional Information
 Earth MOID = 1.33905 au 
 Jupiter MOID = 2.44274 au 
 T_jup = 3.488 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.4   n/a MPO350797  
diameter diameter 35.81 km 0.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
rotation period rot_per 12.323 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F.; Benishek, V.; Oey, J. (2009) Minor Planet Bull. 36, 68.]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.2438   0.013 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16
B-V BV 0.904   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=3.94, mean=9.96, max.=20.45) deg.
U-B UB 0.486   0.048 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.94, mean=6.47, max.=10.02) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B S   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)

178 Belisana          Discovered 1877-Nov-06 by Palisa, J. at Pola
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1935 UA1 = A899 LE = A904 UA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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