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268281 (2005 QW8)
Classification: Main-belt Asteroid          SPK-ID: 2268281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1436157898946456 9.5006e-08  
a 2.398727985589164 1.8478e-08 au
q 2.054232771196384 2.363e-07 au
i 6.055040183240523 8.0406e-06 deg
node 344.0451912053344 4.5893e-05 deg
peri 336.0350979115992 5.1062e-05 deg
M 5.518018997909055 1.9409e-05 deg
tp 2458979.700608935218
(2020-May-10.20060894)
7.3106e-05 TDB
period 1356.969011190216
3.72
1.568e-05
4.293e-08
d
yr
n .2652971416673982 3.0655e-09 deg/d
Q 2.743223199981944 2.1132e-08 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      7033 days (19.26 yr)  
   first obs. used      2000-02-05  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 13:02:26  

Additional Information
 Earth MOID = 1.04334 au 
 Jupiter MOID = 2.55936 au 
 T_jup = 3.506 
[ 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 17.1   n/a MPO433741  

268281 (2005 QW8)          Discovered 2005-Aug-25 by NEAT at Palomar
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ hide close-approach data ]
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
2114-Jan-14 00:04 00:08 Amphi 0.023441430685899 0.0233784040832338 0.0235049219646339 3.17657195808003 3.17657188087773 2493195.502664871 8.07341342250022 6086.49792475178 150.453783688942 -58.8336417174864 19929.5017568509 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 13:02:29 2020-Feb-25 13:02
2161-Jul-29 14:27 00:15 Hebe 0.0287311089791454 0.0286800191518858 0.0287836346705816 8.46818979742592 8.46818977187453 2510559.102168233 15.2763074368663 10458.8878381819 102.285271973808 75.7120445346748 40714.5521350351 T 10 CATAB v2.0f-lin.ifort 2020-Feb-25 13:02:29 2020-Feb-25 13:02

Alternate Designations
 2005 QW8 = 2000 CP144 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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