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910 Anneliese (A919 EC)
Classification: Main-belt Asteroid          SPK-ID: 2000910
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1546194199170438 1.2993e-08  
a 2.927285921764232 8.6526e-09 au
q 2.474670670609718 3.7901e-08 au
i 9.206419441192457 1.0404e-06 deg
node 49.92313796711404 5.7021e-06 deg
peri 208.4801908141851 1.0105e-05 deg
M 20.36843713253723 6.2871e-06 deg
tp 2459096.997378625819
(2020-Sep-04.49737863)
3.1967e-05 TDB
period 1829.347212662828
5.01
8.1109e-06
2.221e-08
d
yr
n .1967915098391727 8.7253e-10 deg/d
Q 3.379901172918747 9.9905e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3385  
   data-arc span      37105 days (101.59 yr)  
   first obs. used      1919-03-01  
   last obs. used      2020-10-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:37:03  

Additional Information
 Earth MOID = 1.4628 au 
 Jupiter MOID = 1.68665 au 
 T_jup = 3.241 
[ show covariance matrix ]

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 10.54   n/a E2021B10  
diameter diameter 48.590 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.2863 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Alvarez, E.M. (2015) Minor Planet Bull. 42, 252-253.]
[Oey, J.; Groom, R. (2018) Minor Planet Bull. 45, 363-366.]
geometric albedo albedo 0.057   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

910 Anneliese (A919 EC)          Discovered 1919-Mar-01 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A919 EC = 1946 SJ = 1975 AH = A924 BD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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