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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1555818812622881 6.3356e-08  
a 2.774176762144847 2.5372e-08 AU
q 2.342565122536229 1.8257e-07 AU
i 8.903949175028725 7.8525e-06 deg
node 1.244965859134555 4.0006e-05 deg
peri 308.534715850467 4.8162e-05 deg
M 53.56538420328233 2.966e-05 deg
tp 2456749.379975705688
(2014-Apr-01.87997571)
0.00013824 JED
period 1687.716985336447
4.62
2.3153e-05
6.339e-08
d
yr
n .2133059056274378 2.9263e-09 deg/d
Q 3.205788401753466 2.932e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      845  
   data-arc span      15834 days (43.35 yr)  
   first obs. used      1971-03-24  
   last obs. used      2014-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5223  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:07:21  

Additional Information
 Earth MOID = 1.34193 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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