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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1541192029943509 3.6116e-08  
a 2.925611061743095 9.2053e-09 au
q 2.474718216635793 1.0741e-07 au
i 9.209038739399226 4.1164e-06 deg
node 49.93600772378836 1.9219e-05 deg
peri 208.473703146281 2.2231e-05 deg
M 340.9903874189857 1.0895e-05 deg
tp 2459097.014835804069
(2020-Sep-04.51483580)
5.5325e-05 TDB
period 1827.777433200637
5.00
8.6265e-06
2.362e-08
d
yr
n .1969605234536684 9.2959e-10 deg/d
Q 3.376503906850398 1.0624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3355  
   data-arc span      37105 days (101.59 yr)  
   first obs. used      1919-03-01  
   last obs. used      2020-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:24:30  

Additional Information
 Earth MOID = 1.46447 au 
 Jupiter MOID = 1.6909 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 10.5   n/a MPO347521  
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. 2019-August); 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

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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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