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66008 (1998 QH2)
Classification: Apollo [NEO]          SPK-ID: 2066008
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 218 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3625574352687227 8.5717e-08  
a 1.426212284300723 4.963e-09 au
q .9091284163559064 1.222e-07 au
i 61.00455143927048 1.5293e-05 deg
node 168.9351687823485 6.8334e-06 deg
peri 13.97142743151264 1.1228e-05 deg
M 64.37054044071438 1.0589e-05 deg
tp 2458889.260419938327
(2020-Feb-09.76041994)
1.8081e-05 TDB
period 622.1207488398389
1.70
3.2473e-06
8.891e-09
d
yr
n .5786657986754912 3.0205e-09 deg/d
Q 1.943296152245539 6.7624e-09 au
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      8805 days (24.11 yr)  
   first obs. used      1996-06-23  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48591  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-02 06:26:54  

Additional Information
 Earth MOID = .0765683 au 
 Jupiter MOID = 3.04399 au 
 T_jup = 4.121 
[ 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 16.0   n/a MPO267910  
diameter diameter 1.484 km 0.279 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 7.09 h n/a LCDB (Rev. 2019-August); 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:
[Warner, B.D. (2016) Minor Planet Bull. 43, 66-79.]
geometric albedo albedo 0.319   0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

66008 (1998 QH2)          Discovered 1998-Aug-20 by LONEOS at Anderson Mesa
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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