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JPL Small-Body Database Browser
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3654 AAS (1949 QH1)
Classification: Main-belt Asteroid          SPK-ID: 2003654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2016057804063416 2.9625e-08  
a 2.261715412517629 5.7423e-09 au
q 1.805740511719962 6.8005e-08 au
i 2.109336474769029 3.5682e-06 deg
node 200.87275089468 8.623e-05 deg
peri 182.5590893882352 8.6605e-05 deg
M 135.2943404026658 8.2689e-06 deg
tp 2458133.590734694772
2.7989e-05 TDB
period 1242.382608242274
n .2897658077404422 1.1035e-09 deg/d
Q 2.717690313315297 6.9e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2301  
   data-arc span      29062 days (79.57 yr)  
   first obs. used      1939-10-07  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48596  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 23:45:45  

Additional Information
 Earth MOID = .808437 au 
 Jupiter MOID = 2.73451 au 
 T_jup = 3.591 
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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 14.1   n/a MPO473816  
diameter diameter 4.280 km 0.351 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.266   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3654 AAS (1949 QH1)          Discovered 1949-Aug-21 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1949 QH1 = 1939 UQ = 1949 SN = 1956 UO = 1973 SF3 = 1973 UY = 1980 WN2 = 1983 NZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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