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459 Signe (A900 UH)
Classification: Main-belt Asteroid          SPK-ID: 2000459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2107992865692783 9.479e-09  
a 2.620265920592278 6.4281e-09 au
q 2.067915733909633 2.428e-08 au
i 10.29916363465384 6.8265e-07 deg
node 29.46781539801528 6.422e-06 deg
peri 19.53982423600086 9.1437e-06 deg
M 101.6191964970675 5.3081e-06 deg
tp 2458763.189670888413
(2019-Oct-06.68967089)
2.2364e-05 TDB
period 1549.232073338767
4.24
5.7009e-06
1.561e-08
d
yr
n .2323731906893458 8.5509e-10 deg/d
Q 3.172616107274924 7.7831e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2694  
   data-arc span      43981 days (120.41 yr)  
   first obs. used      1900-10-23  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38788  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:26:06  

Additional Information
 Earth MOID = 1.07957 au 
 Jupiter MOID = 2.25631 au 
 T_jup = 3.351 
[ 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 10.42   n/a MPCxxxxx IRAS observations used: 2
diameter diameter 25.784 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.5362 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Collaborative Asteroid Lightcurve Link (CALL) (2011) http://www.minorplanetobserver.com/DATA/submissions_results.htm]
[Klinglesmith III, D.K. (2017) Minor Planet Bull. 44, 345-348.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Franco, L.; Marchini, A.; Scarfi, G.; Bacci, P.; et al. (2020) Minor Planet Bull. 47, 144-147.]
geometric albedo albedo 0.221   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.869   0.024 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=10.21 deg.
U-B UB 0.453   0.043 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=10.21 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

459 Signe (A900 UH)          Discovered 1900-Oct-22 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A900 UH = 1934 VH = 1938 SE1 = A917 TF = A921 RD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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