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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05375496292980957 3.4365e-08  
a 2.392487153215506 9.1714e-09 au
q 2.263879094984361 8.4277e-08 au
i 4.789698412729292 3.9887e-06 deg
node 293.9286017973755 4.432e-05 deg
peri 156.7142233431824 5.9648e-05 deg
M 312.6574033774277 4.0537e-05 deg
tp 2459178.255244070681
(2020-Nov-24.75524407)
0.00015253 TDB
period 1351.676765336832
3.70
7.7723e-06
2.128e-08
d
yr
n .2663358646327618 1.5315e-09 deg/d
Q 2.521095211446651 9.6644e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1430  
   data-arc span      8021 days (21.96 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50461  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:17:36  

Additional Information
 Earth MOID = 1.28142 au 
 Jupiter MOID = 2.57211 au 
 T_jup = 3.524 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457166.5 (2015-May-24.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05332136066921319 3.41e-08  
q 2.265282300623211 8.3624e-08 au
tp 2457821.426229368847
(2017-Mar-08.92622937)
0.00015225 TDB
node 294.0178674796247 4.4373e-05 deg
peri 155.4086334437505 6.006e-05 deg
i 4.786114105083626 3.9868e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1430  
   data-arc span      8021 days (21.96 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50461  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:17:36  

Additional Information
 Jupiter MOID = 2.57211 au 
 T_jup = 3.524 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.162829224293179E-15 -2.836517172674124E-15 6.474851929432106E-13 -9.198805331497064E-15 2.157100138927159E-13 -5.719690599953668E-16
q -2.836517172674124E-15 6.992987689065846E-15 -1.163329045273244E-12 2.149830385042227E-14 -4.246627859474616E-13 1.53401984100866E-15
tp 6.474851929432106E-13 -1.163329045273244E-12 2.31795654653652E-8 -1.19078851868845E-11 6.170101064168582E-9 2.631368702378984E-12
node -9.198805331497064E-15 2.149830385042227E-14 -1.19078851868845E-11 1.968940521803415E-9 -1.964984711183463E-9 3.16537013028424E-11
peri 2.157100138927159E-13 -4.246627859474616E-13 6.170101064168582E-9 -1.964984711183463E-9 3.607161424764019E-9 -3.08994146140956E-11
i -5.719690599953668E-16 1.53401984100866E-15 2.631368702378984E-12 3.16537013028424E-11 -3.08994146140956E-11 1.589438471920082E-11

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 28 CATAB v2.0f-lin.ifort 2020-Dec-18 04:17:39 2020-Dec-18 04:17
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 28 CATAB v2.0f-lin.ifort 2020-Dec-18 04:17:39 2020-Dec-18 04:17

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