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576 Emanuela (A905 SK)
Classification: Main-belt Asteroid          SPK-ID: 2000576
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1919085775932209 3.5199e-08  
a 2.990088678915644 9.7717e-09 au
q 2.416265013667349 1.0422e-07 au
i 10.20385679584911 3.8982e-06 deg
node 299.6089174844578 1.811e-05 deg
peri 27.13878971156968 2.0265e-05 deg
M 132.8194059021871 1.0817e-05 deg
tp 2458503.739435398552
(2019-Jan-20.23943540)
5.4624e-05 TDB
period 1888.532790466206
5.17
9.2577e-06
2.535e-08
d
yr
n .1906241722766857 9.3445e-10 deg/d
Q 3.563912344163938 1.1647e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3483  
   data-arc span      35383 days (96.87 yr)  
   first obs. used      1924-03-08  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39204  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:53  

Additional Information
 Earth MOID = 1.40717 au 
 Jupiter MOID = 1.78951 au 
 T_jup = 3.205 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456316.5 (2013-Jan-24.0) TDB
Reference: JPL 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961859086597673 3.5506e-08  
q 2.40042669391611 1.0574e-07 au
tp 2456614.225219513140
(2013-Nov-17.72521951)
4.7776e-05 TDB
node 299.9511495788558 1.8065e-05 deg
peri 26.29579389329575 2.008e-05 deg
i 10.22754417106064 3.9051e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3483  
   data-arc span      35383 days (96.87 yr)  
   first obs. used      1924-03-08  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39204  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:47:53  

Additional Information
 Jupiter MOID = 1.78951 au 
 T_jup = 3.205 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.260666626496752E-15 -3.744519547506643E-15 3.303124999785255E-14 5.302072643215107E-15 -2.550004011727855E-14 -1.627583396103021E-15
q -3.744519547506643E-15 1.118160559838822E-14 8.242785615088312E-14 -1.723708239829661E-14 1.053856829312844E-13 4.859365485057739E-15
tp 3.303124999785255E-14 8.242785615088312E-14 2.282525503661423E-9 -6.978234068109787E-12 4.284885792317608E-10 -5.510249992821907E-13
node 5.302072643215107E-15 -1.723708239829661E-14 -6.978234068109787E-12 3.263269120123587E-10 -3.220173872383205E-10 5.763046289803134E-12
peri -2.550004011727855E-14 1.053856829312844E-13 4.284885792317608E-10 -3.220173872383205E-10 4.032129568058169E-10 -5.847646401721662E-12
i -1.627583396103021E-15 4.859365485057739E-15 -5.510249992821907E-13 5.763046289803134E-12 -5.847646401721662E-12 1.524998803179755E-11

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 9.41   n/a E2021B10  
diameter diameter 74.378 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 20.372 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2017) Minor Planet Bull. 44, 249-251.]
[Pilcher, F. (2018) Minor Planet Bull. 45, 18-19.]
[Pilcher, F. (2020) Minor Planet Bull. 47, 133-135.]
geometric albedo albedo 0.055   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

576 Emanuela (A905 SK)          Discovered 1905-Sep-22 by Gotz, P. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A905 SK = 1972 JG = A923 BA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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