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520 Franziska (A903 UK)
Classification: Main-belt Asteroid          SPK-ID: 2000520
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102355983946025 4.3644e-08  
a 3.003574126296572 1.2963e-08 au
q 2.672473335161724 1.2934e-07 au
i 10.95979997837263 5.0409e-06 deg
node 34.27987245522828 2.1951e-05 deg
peri 21.3571460373867 3.1213e-05 deg
M 121.0634727903475 2.2331e-05 deg
tp 2458361.108901663296
(2018-Aug-30.60890166)
0.00011684 TDB
period 1901.323248836836
5.21
1.2309e-05
3.37e-08
d
yr
n .1893418177157595 1.2258e-09 deg/d
Q 3.33467491743142 1.4392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2653  
   data-arc span      42651 days (116.77 yr)  
   first obs. used      1903-10-28  
   last obs. used      2020-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38845  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:17:17  

Additional Information
 Earth MOID = 1.6865 au 
 Jupiter MOID = 2.07912 au 
 T_jup = 3.215 
[ 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 10.6   n/a MPO502158 IRAS observations used: 8
diameter diameter 25.261 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 16.507 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2014) Minor Planet Bull. 41, 155-156.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.147   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.738   0.054 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.13 deg.
Tholen spectral type spec_T CGU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

520 Franziska (A903 UK)          Discovered 1903-Oct-27 by Wolf, M. and Gotz, P. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2197-Nov-22 10:54 < 00:01 Cybel 0.0467324598816486 0.0467276018951117 0.046737323522738 4.76110492940077 4.76110490206133 2523823.954201431 0.507318372813767 856.084342570495 39.0851020309486 -73.7633990311797 171687.99865703 T 33 CATAB v2.0f-lin.ifort 2020-Aug-24 22:17:38 2020-Aug-24 22:17

Alternate Designations
 A903 UK = A924 WH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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