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3160 Angerhofer (1980 LE)
Classification: Main-belt Asteroid          SPK-ID: 2003160
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .156625001831335 2.9194e-08  
a 2.37664841828499 6.8657e-09 au
q 2.004405855418664 7.1566e-08 au
i 5.07138946100816 3.2558e-06 deg
node 310.5307842276222 3.5673e-05 deg
peri 332.0688943026635 3.7176e-05 deg
M 326.3221938665011 1.0356e-05 deg
tp 2459125.695041803132
(2020-Oct-03.19504180)
3.857e-05 TDB
period 1338.276456324657
3.66
5.7991e-06
1.588e-08
d
yr
n .2690027148715425 1.1657e-09 deg/d
Q 2.748890981151316 7.9411e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2424  
   data-arc span      14663 days (40.15 yr)  
   first obs. used      1980-06-14  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43166  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:00:27  

Additional Information
 Earth MOID = .989642 au 
 Jupiter MOID = 2.40299 au 
 T_jup = 3.519 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456846.5 (2014-Jul-08.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1573518788377966 2.9272e-08  
q 2.002185101524287 7.1779e-08 au
tp 2456447.659561078689
(2013-Jun-04.15956108)
3.8273e-05 TDB
node 310.5832429556272 3.5634e-05 deg
peri 331.7314158675958 3.7116e-05 deg
i 5.075648424127291 3.2575e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2424  
   data-arc span      14663 days (40.15 yr)  
   first obs. used      1980-06-14  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43166  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:00:27  

Additional Information
 Jupiter MOID = 2.40299 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.56824586552319E-16 -2.094981386498623E-15 8.810082576746049E-14 -3.178335135027363E-15 2.908663800604299E-14 -1.010309882363454E-15
q -2.094981386498623E-15 5.152182334243872E-15 -2.447964839182595E-13 8.305990451447384E-15 -7.682250862004909E-14 2.615191394136213E-15
tp 8.810082576746049E-14 -2.447964839182595E-13 1.464838764666954E-9 4.320691932289769E-12 4.061021854567773E-10 5.32682107163845E-13
node -3.178335135027363E-15 8.305990451447384E-15 4.320691932289769E-12 1.269803082802486E-9 -1.263306593903271E-9 2.716427125945609E-13
peri 2.908663800604299E-14 -7.682250862004909E-14 4.061021854567773E-10 -1.263306593903271E-9 1.377615663433737E-9 -1.191802495118981E-13
i -1.010309882363454E-15 2.615191394136213E-15 5.32682107163845E-13 2.716427125945609E-13 -1.191802495118981E-13 1.061099318984772E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO384780  
diameter diameter 4.813 km 0.296 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 44.720 h n/a LCDB (Rev. 2019-August); 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:
[Stephens, R.D. (2018) Minor Planet Bull. 45, 50-54.]
geometric albedo albedo 0.365   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3160 Angerhofer (1980 LE)          Discovered 1980-Jun-14 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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