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6044 Hammer-Purgstall (1991 RW4)
Classification: Main-belt Asteroid          SPK-ID: 2006044
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1556848478459125 6.5506e-08  
a 2.774668890529677 2.8208e-08 AU
q 2.342694986484777 1.9115e-07 AU
i 8.90333966534585 7.891e-06 deg
node 1.24576450311962 4.1203e-05 deg
peri 308.5786691374292 4.9874e-05 deg
M 10.86819754635061 3.2857e-05 deg
tp 2456749.535214904800
(2014-Apr-02.03521490)
0.00015379 JED
period 1688.166097094264
4.62
2.5743e-05
7.048e-08
d
yr
n .2132491587288987 3.2519e-09 deg/d
Q 3.206642794574576 3.26e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      15447 days (42.29 yr)  
   first obs. used      1971-03-24  
   last obs. used      2013-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52412  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:18:28  

Additional Information
 Earth MOID = 1.34018 AU 
 T_jup = 3.301 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO265990  

6044 Hammer-Purgstall (1991 RW4)          Discovered 1991-Sep-13 by Borngen and Schmadel at Tautenburg (033)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 RW4 = 1977 RF10 = 1987 YN3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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