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85548 (1997 XX13)
Classification: Main-belt Asteroid          SPK-ID: 2085548
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2444840456772314 3.3292e-08  
a 2.324643347946305 9.0982e-09 au
q 1.756305137483728 7.7042e-08 au
i 7.345115139015327 4.0737e-06 deg
node 88.4089765497333 3.7405e-05 deg
peri 329.792759776551 3.914e-05 deg
M 233.5747646169172 1.2347e-05 deg
tp 2459851.136390270590
(2022-Sep-28.63639027)
4.5992e-05 TDB
period 1294.592017182934
3.54
7.6002e-06
2.081e-08
d
yr
n .2780798855714942 1.6325e-09 deg/d
Q 2.892981558408881 1.1323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      893  
   data-arc span      10672 days (29.22 yr)  
   first obs. used      1991-02-09  
   last obs. used      2020-04-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53178  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:09:59  

Additional Information
 Earth MOID = .773065 au 
 Jupiter MOID = 2.46183 au 
 T_jup = 3.524 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.82   n/a E2021B10  
rotation period rot_per 18.5281 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

85548 (1997 XX13)          Discovered 1997-Dec-04 by Uppsala-DLR Trojan Survey at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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