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85821 (1998 XQ10)
Classification: Main-belt Asteroid          SPK-ID: 2085821
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05375496321130784 3.4373e-08  
a 2.392487152983729 9.2028e-09 au
q 2.263879094091562 8.4315e-08 au
i 4.78969849822971 3.9922e-06 deg
node 293.9286032240926 4.4406e-05 deg
peri 156.7142208383847 5.9796e-05 deg
M 312.6574045863831 4.0697e-05 deg
tp 2459178.255239505636
(2020-Nov-24.75523951)
0.00015314 TDB
period 1351.676765140413
3.70
7.7989e-06
2.135e-08
d
yr
n .2663358646714645 1.5367e-09 deg/d
Q 2.521095211875896 9.6975e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1423  
   data-arc span      8011 days (21.93 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50521  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:42  

Additional Information
 Earth MOID = 1.28142 au 
 Jupiter MOID = 2.57211 au 
 T_jup = 3.524 
[ 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 14.5   n/a MPO400792  
diameter diameter 4.097 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.183   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85821 (1998 XQ10)          Discovered 1998-Dec-15 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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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
2059-Jul-15 06:32 00:02 Thisb 0.045970711560894 0.0459684682785581 0.0459729554605865 3.15226879115084 3.15226874409968 2473289.772376115 2.00209307456073 311.90725786285 46.0259236648377 -70.7312416047536 141108.364307487 T 27 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:45 2020-Nov-12 20:59
2175-Mar-31 21:17 < 00:01 Juno 0.0153538532417327 0.0153408784305975 0.0153668512438849 6.60646217203144 6.60646205209265 2515552.386581497 0.45913713360876 1142.75508498668 31.2737086244929 55.5265557834298 60532.7627827789 T 27 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:45 2020-Nov-12 20:59

Alternate Designations
 1998 XQ10 = 2001 QY98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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