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JPL Small-Body Database Browser
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913 Otila (A919 KD)
Classification: Main-belt Asteroid          SPK-ID: 2000913
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1706250092436856 4.1838e-08  
a 2.197422551941854 5.6196e-09 au
q 1.822487308704492 9.2198e-08 au
i 5.805940872676781 4.2081e-06 deg
node 94.92781715782456 3.7199e-05 deg
peri 188.6521323280125 3.8771e-05 deg
M 208.4028227409092 1.1928e-05 deg
tp 2459101.522704453202
(2020-Sep-09.02270445)
3.9904e-05 TDB
period 1189.785831532271
3.26
4.564e-06
1.25e-08
d
yr
n .3025754639693198 1.1607e-09 deg/d
Q 2.572357795179216 6.5784e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2675  
   data-arc span      40197 days (110.05 yr)  
   first obs. used      1909-04-22  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42621  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:15:59  

Additional Information
 Earth MOID = .805676 au 
 Jupiter MOID = 2.56616 au 
 T_jup = 3.642 
[ 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 11.9   n/a MPO435704  
diameter diameter 11.636 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.8720 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Oey, J.; Krajewski, R. (2008) Minor Planet Bull. 35, 47-48.]
[Schiller, Q. (2008) Minor Planet Bull. 35, 41.]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Dykhuis, M.J.; Molnar, L.A.; Gates, C.J.; Gonzales, J.A.; et al. (2016) Icarus 267, 174-203.]
geometric albedo albedo 0.282   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Sa   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

913 Otila (A919 KD)          Discovered 1919-May-19 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A919 KD = 1935 ES = 1942 NB = 1955 LB = A909 HD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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