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JPL Small-Body Database Browser
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401 Ottilia (A895 FA)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000401
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 105 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03177494675034721 3.6509e-08  
a 3.342905335989195 1.445e-08 au
q 3.236684696946687 1.2266e-07 au
i 5.964241786823024 4.0919e-06 deg
node 36.05899568026366 3.9405e-05 deg
peri 299.4668085374343 7.4232e-05 deg
M 33.32918361338223 6.2901e-05 deg
tp 2458793.816065793626
(2019-Nov-06.31606579)
0.00039035 TDB
period 2232.464412492214
6.11
1.4475e-05
3.963e-08
d
yr
n .1612567698663172 1.0456e-09 deg/d
Q 3.449125975031703 1.491e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2959  
   data-arc span      45583 days (124.80 yr)  
   first obs. used      1895-03-19  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44862  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:26:29  

Additional Information
 Earth MOID = 2.23304 au 
 Jupiter MOID = 1.68629 au 
 T_jup = 3.150 
[ 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 9.2   n/a MPO332816  
diameter diameter 87.803 km 0.435 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.049 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Lagerkvist, C.-I.; Erikson, A.; Lahulla, F.; Di Martino, M.; et al. (2001) Icarus 149, 190-197.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.052   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

401 Ottilia (A895 FA)          Discovered 1895-Mar-16 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A895 FA = 1931 DA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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