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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021638933027333 8.3108e-08  
a 2.274112518492297 1.285e-08 au
q 1.81436907794541 1.8556e-07 au
i 28.52367517439242 8.777e-06 deg
node 129.2744450610712 1.0029e-05 deg
peri 358.1763091838318 1.8099e-05 deg
M 274.5239589504612 1.4999e-05 deg
tp 2457897.911836277487
(2017-May-24.41183628)
5.3688e-05 JED
period 1252.611372090131
3.43
1.0617e-05
2.907e-08
d
yr
n .2873995941768412 2.4359e-09 deg/d
Q 2.733855959039183 1.5447e-08 au
  Orbit Determination Parameters
   # obs. used (total)      733  
   data-arc span      11981 days (32.80 yr)  
   first obs. used      1983-01-12  
   last obs. used      2015-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4794  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 16:13:31  

Additional Information
 Earth MOID = .828147 au 
 Jupiter MOID = 2.34579 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 13.7 mag n/a MPO347628  
rotation period rot_per 6.8 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 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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