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296 Phaetusa (A890 QB)
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1597850044876373 3.2895e-08  
a 2.228938017586485 5.6576e-09 au
q 1.872787146443763 7.3544e-08 au
i 1.747949894079215 3.4591e-06 deg
node 121.5642165968149 0.00011755 deg
peri 252.4641061592294 0.00011816 deg
M 327.35254158203 1.4786e-05 deg
tp 2459110.728092285197
(2020-Sep-18.22809229)
5.0163e-05 TDB
period 1215.473275580588
3.33
4.6278e-06
1.267e-08
d
yr
n .2961809257616469 1.1277e-09 deg/d
Q 2.585088888729206 6.5616e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2558  
   data-arc span      36430 days (99.74 yr)  
   first obs. used      1920-09-07  
   last obs. used      2020-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:10:58  

Additional Information
 Earth MOID = .874284 au 
 Jupiter MOID = 2.87789 au 
 T_jup = 3.626 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456225.5 (2012-Oct-25.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598722243387521 3.2823e-08  
q 1.872768794782767 7.3399e-08 au
tp 2456679.589139407666
(2014-Jan-22.08913941)
4.5769e-05 TDB
node 121.5841715271878 0.00011764 deg
peri 252.432875577614 0.00011824 deg
i 1.746879721520251 3.4586e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2558  
   data-arc span      36430 days (99.74 yr)  
   first obs. used      1920-09-07  
   last obs. used      2020-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:10:58  

Additional Information
 Jupiter MOID = 2.87789 au 
 T_jup = 3.626 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.077350871477493E-15 -2.4042930266011E-15 -7.670096401057166E-14 2.153478275945152E-15 -1.241052644118622E-14 2.606204777742048E-16
q -2.4042930266011E-15 5.387476768600297E-15 2.608426772063306E-13 -4.784665534733935E-15 4.858944595303853E-14 -5.557993513820001E-16
tp -7.670096401057166E-14 2.608426772063306E-13 2.09480480176275E-9 1.151148662848214E-12 5.591346924906706E-10 1.900874812525334E-13
node 2.153478275945152E-15 -4.784665534733935E-15 1.151148662848214E-12 1.383899892391879E-8 -1.383179787045394E-8 -5.176064510111141E-12
peri -1.241052644118622E-14 4.858944595303853E-14 5.591346924906706E-10 -1.383179787045394E-8 1.398175529145283E-8 5.223385929659414E-12
i 2.606204777742048E-16 -5.557993513820001E-16 1.900874812525334E-13 -5.176064510111141E-12 5.223385929659414E-12 1.196196272596495E-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 12.6   n/a MPO473764  
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-August); 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 (A890 QB)          Discovered 1890-Aug-19 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A890 QB = 1930 YH = A917 XB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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