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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532331036021585 2.9504e-08  
a 2.776396912153887 1.2141e-08 au
q 2.350960996473098 8.0017e-08 au
i 8.891032782935085 1.0558e-06 deg
node 1.182874687349794 1.2412e-06 deg
peri 308.617229785582 5.5342e-06 deg
M 162.480221094979 7.4719e-06 deg
tp 2458437.861446049511
(2018-Nov-15.36144605)
3.175e-05 TDB
period 1689.743388899537
4.63
1.1083e-05
3.034e-08
d
yr
n .2130501011958116 1.3974e-09 deg/d
Q 3.201832827834677 1.4001e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2148  
   data-arc span      18259 days (49.99 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46326  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:40:22  

Additional Information
 Earth MOID = 1.34738 au 
 Jupiter MOID = 2.1382 au 
 T_jup = 3.300 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.50   n/a MPCxxxxx  

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

Alternate Designations
 1991 RW4 = 1977 RF10 = 1987 YN3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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