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JPL Small-Body Database Browser
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3415 Danby (1928 SL)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003415
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2482801147667046 3.6639e-08  
a 3.962305061937532 2.8533e-08 au
q 2.978543506418986 1.4266e-07 au
i 1.367037689010492 3.9706e-06 deg
node 253.9562612963259 0.00019218 deg
peri 136.6084117331777 0.00019235 deg
M 160.9570421226641 8.534e-06 deg
tp 2457312.464679212378
(2015-Oct-16.96467921)
6.3464e-05 TDB
period 2880.847643374108
7.89
3.1118e-05
8.52e-08
d
yr
n .1249632207478909 1.3498e-09 deg/d
Q 4.946066617456077 3.5617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2562  
   data-arc span      33103 days (90.63 yr)  
   first obs. used      1928-09-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47927  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 23:09:21  

Additional Information
 Earth MOID = 1.98372 au 
 Jupiter MOID = .531349 au 
 T_jup = 3.003 
[ 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 10.9   n/a MPO435730  
diameter diameter 36.582 km 0.615 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 5.675 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D.; Higgins, D. (2008) Minor Planet Bull. 35, 103.]
[Apostolovska, G.; Ivanova, V. Kostov, A. (2009) Minor Planet Bull. 36, 27-28.]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D.; Stephens, R.D. (2018) Minor Planet Bull. 45, 262-265.]
geometric albedo albedo 0.063   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

3415 Danby (1928 SL)          Discovered 1928-Sep-22 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1928 SL = 1967 RL = 1983 RV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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