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JPL Small-Body Database Browser
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34384 (2000 RW61)
Classification: Main-belt Asteroid          SPK-ID: 2034384
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09193262424743691 4.2777e-08  
a 3.028706969555293 1.9902e-08 au
q 2.750269989767573 1.3744e-07 au
i 9.787867707936448 4.7749e-06 deg
node 78.79202990933477 2.6332e-05 deg
peri 254.491742864232 3.8146e-05 deg
M 342.7114509949281 2.8471e-05 deg
tp 2459092.957119059247
(2020-Aug-31.45711906)
0.00015244 TDB
period 1925.237499778851
5.27
1.8976e-05
5.195e-08
d
yr
n .1869899168499224 1.8431e-09 deg/d
Q 3.307143949343013 2.1732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1540  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1998-05-22  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51821  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:27:02  

Additional Information
 Earth MOID = 1.76015 au 
 Jupiter MOID = 2.00954 au 
 T_jup = 3.215 
[ 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 13.1   n/a MPO299203  
diameter diameter 8.646 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.003 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.113   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

34384 (2000 RW61)          Discovered 2000-Sep-01 by LINEAR at Socorro
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 RW61 = 1998 KT4 = 1999 SZ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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