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33776 (1999 RB158)
Classification: Main-belt Asteroid          SPK-ID: 2033776
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009516858771409 5.4968e-08  
a 3.167968082544633 2.3209e-08 au
q 2.848156363806779 1.7466e-07 au
i 16.51102806138338 5.8492e-06 deg
node 354.5369803919586 1.57e-05 deg
peri 305.4939668527534 3.3202e-05 deg
M 205.7675070502881 3.3218e-05 deg
tp 2459482.854288029428
(2021-Sep-25.35428803)
0.00019407 TDB
period 2059.537115788982
5.64
2.2632e-05
6.196e-08
d
yr
n .1747965585277101 1.9209e-09 deg/d
Q 3.487779801282487 2.5552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1629  
   data-arc span      8246 days (22.58 yr)  
   first obs. used      1997-04-28  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45182  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 02:00:26  

Additional Information
 Earth MOID = 1.86821 au 
 Jupiter MOID = 1.95847 au 
 T_jup = 3.131 
[ 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 12.4   n/a MPO344563  
diameter diameter 18.300 km 0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 16.9593 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.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.052   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

33776 (1999 RB158)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RB158 = 1997 HB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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