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4192 Breysacher (1981 DH)
Classification: Outer Main-belt Asteroid          SPK-ID: 2004192
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1676633434042323 1.4023e-08  
a 3.208498341186305 1.4636e-08 au
q 2.670550781996075 4.9314e-08 au
i .5482952472162552 6.3338e-07 deg
node 208.0567014722658 4.4458e-05 deg
peri 128.5281247293176 4.4935e-05 deg
M 158.6411701981381 9.0598e-06 deg
tp 2458275.451380256125
(2018-Jun-05.95138026)
5.0018e-05 TDB
period 2099.187132141461
5.75
1.4363e-05
3.932e-08
d
yr
n .171494953683691 1.1734e-09 deg/d
Q 3.746445900376534 1.709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3074  
   data-arc span      24396 days (66.79 yr)  
   first obs. used      1954-06-05  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43136  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:28:11  

Additional Information
 Earth MOID = 1.65928 au 
 Jupiter MOID = 1.64063 au 
 T_jup = 3.170 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456747.5 (2014-Mar-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1642305802445816 1.3829e-08  
q 2.684551548781696 4.8548e-08 au
tp 2456151.013613032025
(2012-Aug-11.51361303)
4.6917e-05 TDB
node 210.5698814912395 4.7239e-05 deg
peri 122.9522746504006 4.7762e-05 deg
i .533235861472942 6.1671e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3074  
   data-arc span      24396 days (66.79 yr)  
   first obs. used      1954-06-05  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43136  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:28:11  

Additional Information
 Jupiter MOID = 1.64063 au 
 T_jup = 3.170 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.912527536266E-16 -6.501657444387998E-16 -6.01274951723226E-14 -2.267460801649595E-13 2.177097735200537E-13 1.83717286660824E-15
q -6.501657444387998E-16 2.356870395545287E-15 2.723850718450478E-13 7.093979100883368E-13 -6.586064963110289E-13 -6.003604935051958E-15
tp -6.01274951723226E-14 2.723850718450478E-13 2.201228186160336E-9 -8.065535024344808E-13 2.9462596792225E-10 -6.757038094096188E-13
node -2.267460801649595E-13 7.093979100883368E-13 -8.065535024344808E-13 2.231519377892676E-9 -2.236104481434052E-9 -2.186262539186158E-11
peri 2.177097735200537E-13 -6.586064963110289E-13 2.9462596792225E-10 -2.236104481434052E-9 2.281187394717427E-9 2.189046676262516E-11
i 1.83717286660824E-15 -6.003604935051958E-15 -6.757038094096188E-13 -2.186262539186158E-11 2.189046676262516E-11 3.803293725833545E-13

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 11.96   n/a E2021B10  
diameter diameter 21.245 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.394 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.082   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4192 Breysacher (1981 DH)          Discovered 1981-Feb-28 by Debehogne and Sanctis at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 DH = 1949 PD = 1949 PX = 1954 LB = 1972 TK5 = 1978 SA6 = 1980 BZ3 = 1989 QC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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