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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 ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566250041147627 2.9434e-08  
a 2.376648418907173 6.9437e-09 au
q 2.004405850516493 7.2018e-08 au
i 5.071390030353182 3.3494e-06 deg
node 310.530787279615 3.5943e-05 deg
peri 332.0688921879886 3.7465e-05 deg
M 326.3221925213312 1.0579e-05 deg
tp 2459125.695046852876
(2020-Oct-03.19504685)
3.9415e-05 TDB
period 1338.276456850179
3.66
5.8649e-06
1.606e-08
d
yr
n .269002714765909 1.1789e-09 deg/d
Q 2.748890987297854 8.0312e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2344  
   data-arc span      14613 days (40.01 yr)  
   first obs. used      1980-06-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:54:12  

Additional Information
 Earth MOID = .989642 au 
 Jupiter MOID = 2.40299 au 
 T_jup = 3.519 
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Orbital Elements at Epoch 2456775.5 (2014-Apr-28.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1573797243206147 2.9517e-08  
q 2.002119142191298 7.2251e-08 au
tp 2456447.677793276844
(2013-Jun-04.17779328)
3.8777e-05 TDB
node 310.5832667433711 3.5903e-05 deg
peri 331.7329899274999 3.7404e-05 deg
i 5.07565165198335 3.3511e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2344  
   data-arc span      14613 days (40.01 yr)  
   first obs. used      1980-06-14  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:54:12  

Additional Information
 Jupiter MOID = 2.40299 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.712416421864324E-16 -2.126262617600709E-15 1.116026959503904E-13 -3.096849204867949E-15 3.447715035201849E-14 -9.793654873975861E-16
q -2.126262617600709E-15 5.220275269183403E-15 -2.954057816830281E-13 8.07954999684345E-15 -8.841344748007039E-14 2.538326975060185E-15
tp 1.116026959503904E-13 -2.954057816830281E-13 1.503689399843548E-9 3.762728692647025E-12 4.156917335323137E-10 4.403761178863324E-13
node -3.096849204867949E-15 8.07954999684345E-15 3.762728692647025E-12 1.289051796064689E-9 -1.282618850383582E-9 3.663452046428236E-12
peri 3.447715035201849E-14 -8.841344748007039E-14 4.156917335323137E-10 -1.282618850383582E-9 1.399082717476222E-9 -3.521082322556335E-12
i -9.793654873975861E-16 2.538326975060185E-15 4.403761178863324E-13 3.663452046428236E-12 -3.521082322556335E-12 1.122955712462225E-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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