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JPL Small-Body Database Browser
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296 Phaetusa
Classification: Main-belt Asteroid          SPK-ID: 2000296
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605425929985468 3.3493e-08  
a 2.228812179796383 5.7857e-09 au
q 1.870992893145128 7.484e-08 au
i 1.747386518254977 3.7607e-06 deg
node 121.5793817365353 0.00012008 deg
peri 252.4654543208411 0.00012074 deg
M 208.9420163625177 1.5226e-05 deg
tp 2459110.476093657468
(2020-Sep-17.97609366)
5.2507e-05 TDB
period 1215.370345186665
3.33
4.7324e-06
1.296e-08
d
yr
n .2962060094898142 1.1534e-09 deg/d
Q 2.586631466447638 6.7145e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2357  
   data-arc span      36040 days (98.67 yr)  
   first obs. used      1920-09-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44671  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:05:44  

Additional Information
 Earth MOID = .871683 au 
 Jupiter MOID = 2.87314 au 
 T_jup = 3.626 
[ 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 12.62   n/a PDS3 (MPC 17258)  
diameter diameter 8.196 km 0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.5385 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2011) Minor Planet Bull. 38, 50-52.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.379   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.887   0.013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=2.25, mean=2.72, max.=3.18) deg.
U-B UB 0.463   0.051 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=2.25, mean=2.72, max.=3.18) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

296 Phaetusa          Discovered 1890-Aug-19 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 YH = A917 XB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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