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13006 Schwaar (1983 AC1)
Classification: Main-belt Asteroid          SPK-ID: 2013006
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024237831482133 8.5181e-08  
a 2.273607039717239 1.3653e-08 AU
q 1.813374901345266 1.8982e-07 AU
i 28.52688764727031 9.0616e-06 deg
node 129.279150240192 1.1199e-05 deg
peri 358.0735114164814 2.3632e-05 deg
M 44.70239982124283 1.6248e-05 deg
tp 2456645.010927628950
(2013-Dec-18.51092763)
5.6175e-05 JED
period 1252.19375866657
3.43
1.1279e-05
3.088e-08
d
yr
n .2874954435033721 2.5896e-09 deg/d
Q 2.733839178089213 1.6417e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      11484 days (31.44 yr)  
   first obs. used      1983-01-12  
   last obs. used      2014-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48706  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:29:37  

Additional Information
 Earth MOID = .828494 AU 
 T_jup = 3.426 
[ 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 13.6 mag n/a PDS3 (MPC 37488)  
rotation period rot_per 6.8 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Higgins, D.; Oey, J. (2007) Minor Planet Bul. 34, 79-80.]

13006 Schwaar           Discovered 1983 Jan. 12 by B. A. Skiff at the Anderson Mesa Station of the Lowell Observatory.
Pierre-Yves Schwaar (1946-2000) was a well-regarded amateur optician and telescope maker. He was also an accomplished observer and photographer of the night sky, often making resourceful use of simple apparatus.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1983 AC1 = 1990 DH 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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