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JPL Small-Body Database Browser
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85822 (1998 XC17)
Classification: Jupiter Trojan          SPK-ID: 2085822
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271422028588257 9.2206e-08  
a 5.178992596241221 2.2296e-07 au
q 4.520524068965563 5.9347e-07 au
i 11.31640102848509 7.5091e-06 deg
node 86.91188091862257 3.8207e-05 deg
peri 325.100429180298 5.1437e-05 deg
M 276.2014701558303 4.3673e-05 deg
tp 2459602.575077117117
(2022-Jan-23.07507712)
0.00056805 TDB
period 4304.932657327057
11.79
0.00027799
7.611e-07
d
yr
n .08362500151710268 5.4001e-09 deg/d
Q 5.837461123516878 2.513e-07 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      7568 days (20.72 yr)  
   first obs. used      1998-12-08  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53745  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:54:09  

Additional Information
 Earth MOID = 3.53926 au 
 Jupiter MOID = .415712 au 
 T_jup = 2.945 
[ 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 12.5   n/a MPO453289  
diameter diameter 12.474 km 0.556 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.164   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

85822 (1998 XC17)          Discovered 1998-Dec-08 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 XC17 = 2000 AA37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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