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215466 (2002 QD98)
Classification: Main-belt Asteroid          SPK-ID: 2215466
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1768232740234409 4.0278e-08  
a 2.39081577835471 1.3106e-08 au
q 1.968063904839129 9.7089e-08 au
i 3.534225816419004 5.1119e-06 deg
node 114.0348869497827 0.00011026 deg
peri 172.8620065511704 0.00011241 deg
M 316.9741828554372 2.1726e-05 deg
tp 2459161.877960774212
(2020-Nov-08.37796077)
8.1979e-05 TDB
period 1350.260604778723
3.70
1.1103e-05
3.04e-08
d
yr
n .2666151991148374 2.1923e-09 deg/d
Q 2.813567651870291 1.5424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      8955 days (24.52 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58083  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:18:40  

Additional Information
 Earth MOID = .951731 au 
 Jupiter MOID = 2.34672 au 
 T_jup = 3.508 
[ 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 17.9   n/a MPO422840  

215466 (2002 QD98)          Discovered 2002-Aug-18 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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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
2019-Jul-25 19:09 < 00:01 Hebe 0.0464141035930032 0.0464111335864998 0.0464170736291789 6.07300609732256 6.07300607526772 2458690.298241312 0.449395053952684 162.086797269288 68.4055601787667 -26.6705340387477 59490.4737028273 T 11 CATAB v2.0f-lin.ifort 2020-May-21 09:19:06 2020-May-21 09:19
2025-Sep-25 05:48 00:04 Psych 0.0328627863235497 0.0328606632996427 0.0328649093640095 2.46004035077474 2.46004020111446 2460943.741348395 3.70415344139324 118.028936814944 76.0176519481852 -35.7395904433072 50574.0528140664 T 11 CATAB v2.0f-lin.ifort 2020-May-21 09:19:06 2020-May-21 09:19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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