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JPL Small-Body Database Browser
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725 Amanda (A911 UQ)
Classification: Main-belt Asteroid          SPK-ID: 2000725
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2214334595710198 3.8298e-08  
a 2.572591825853532 8.1058e-09 au
q 2.002933917790658 1.0182e-07 au
i 3.790360156118323 3.2372e-06 deg
node 68.68430192524519 5.7903e-05 deg
peri 323.4096141708208 5.836e-05 deg
M 18.92105169958225 8.3539e-06 deg
tp 2458521.286805732377
(2019-Feb-06.78680573)
3.4761e-05 TDB
period 1507.144020803756
4.13
7.1231e-06
1.95e-08
d
yr
n .2388623748167165 1.1289e-09 deg/d
Q 3.142249733916406 9.9007e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2824  
   data-arc span      38046 days (104.16 yr)  
   first obs. used      1915-09-29  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44263  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:11:19  

Additional Information
 Earth MOID = 1.00992 au 
 Jupiter MOID = 2.29537 au 
 T_jup = 3.391 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.81   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
diameter diameter 23.687 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.749 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Di Martino, M.; Dotto, E.; Barucci, M.A.; Fulchignoni, M.; Rotundi, A. (1994) Icarus 109, 210-218.]
[Behrend, R. (2010) 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.]
geometric albedo albedo 0.068   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.738   0.046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=20.36 deg.
U-B UB 0.417   0.070 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=20.36 deg.
Tholen spectral type spec_T CSU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

725 Amanda (A911 UQ)          Discovered 1911-Oct-21 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A911 UQ = 2016 FH6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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