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11697 Estrella (1998 FX98)
Classification: Main-belt Asteroid          SPK-ID: 2011697
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05756198012584104 3.6158e-08  
a 2.344026734715187 8.8688e-09 au
q 2.209099914397072 8.207e-08 au
i 6.27037729476037 3.4792e-06 deg
node 272.0906811470065 3.8356e-05 deg
peri 213.478167644533 5.2143e-05 deg
M 172.037736805404 3.6118e-05 deg
tp 2458574.083068453857
(2019-Mar-31.58306845)
0.00013062 TDB
period 1310.817612136409
3.59
7.4394e-06
2.037e-08
d
yr
n .2746377502612752 1.5587e-09 deg/d
Q 2.478953555033303 9.3793e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1747  
   data-arc span      21882 days (59.91 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48884  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:57:51  

Additional Information
 Earth MOID = 1.22767 au 
 Jupiter MOID = 2.5718 au 
 T_jup = 3.552 
[ 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 14.41   n/a E2021B10  
diameter diameter 2.726 km 0.402 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.805 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.377   0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11697 Estrella           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Allan Noriel Estrella (b. 1984) is a finalist in the 2002 Intel International Science and Engineering Fair for his physics project. He attends the Manila Science High School, Manila, Philippines.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 FX98 = 3098 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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