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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554413997958305 5.5966e-08  
a 2.773651195002227 1.8427e-08 au
q 2.342510970705703 1.5489e-07 au
i 8.904204853386572 6.7552e-06 deg
node 1.245896810073154 3.0206e-05 deg
peri 308.4500509818155 3.6992e-05 deg
M 139.0074686672516 2.1353e-05 deg
tp 2456749.003888204428
(2014-Apr-01.50388820)
0.00010047 JED
period 1687.237401666751
4.62
1.6814e-05
4.603e-08
d
yr
n .2133665361165958 2.1263e-09 deg/d
Q 3.204791419298751 2.1292e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1110  
   data-arc span      16340 days (44.74 yr)  
   first obs. used      1971-03-24  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51673  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:58:35  

Additional Information
 Earth MOID = 1.33908 au 
 Jupiter MOID = 2.12513 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
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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