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JPL Small-Body Database Browser
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49591 (1999 DO2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2049591
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .105445051000113 3.6093e-08  
a 3.215497037587159 2.4627e-08 au
q 2.876438788468068 1.1732e-07 au
i 17.70494347249679 5.2221e-06 deg
node 46.22881057844049 1.3957e-05 deg
peri 85.03920045807772 2.9206e-05 deg
M 204.5504146568103 2.6174e-05 deg
tp 2459509.905684850913
(2021-Oct-22.40568485)
0.00015741 TDB
period 2106.059310634704
5.77
2.4195e-05
6.624e-08
d
yr
n .1709353569399272 1.9638e-09 deg/d
Q 3.554555286706249 2.7224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1758  
   data-arc span      10277 days (28.14 yr)  
   first obs. used      1991-10-13  
   last obs. used      2019-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47628  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:21:36  

Additional Information
 Earth MOID = 1.96065 au 
 Jupiter MOID = 1.7117 au 
 T_jup = 3.108 
[ 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 12.5   n/a MPO319675  
diameter diameter 17.646 km 0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.09173 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.119   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49591 (1999 DO2)          Discovered 1999-Feb-19 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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