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6044 Hammer-Purgstall (1991 RW4)
Classification: Main-belt Asteroid          SPK-ID: 2006044
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532738433309637 3.969e-08  
a 2.776036635327059 1.3189e-08 au
q 2.350542831002924 1.0727e-07 au
i 8.890854077316749 4.952e-06 deg
node 1.191794268847199 2.1683e-05 deg
peri 308.544691930565 2.6975e-05 deg
M 119.9452171415484 1.7887e-05 deg
tp 2458437.618920200215
(2018-Nov-15.11892020)
8.2665e-05 TDB
period 1689.41449735998
4.63
1.2039e-05
3.296e-08
d
yr
n .213091577326089 1.5186e-09 deg/d
Q 3.201530439651194 1.521e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1793  
   data-arc span      17920 days (49.06 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:29:04  

Additional Information
 Earth MOID = 1.34893 au 
 Jupiter MOID = 2.13862 au 
 T_jup = 3.301 
[ 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 13.4   n/a MPO439121  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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