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277231 (2005 QE181)
Classification: Main-belt Asteroid          SPK-ID: 2277231
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1354305249357945 5.0174e-08  
a 2.239538313202424 1.6493e-08 au
q 1.936236463831597 1.1416e-07 au
i 4.422813524513519 5.3485e-06 deg
node 282.4246909926033 7.8803e-05 deg
peri .8285011429878083 8.2095e-05 deg
M 211.2052893380972 2.2486e-05 deg
tp 2459506.465802190326
(2021-Oct-18.96580219)
7.7337e-05 TDB
period 1224.154326308014
3.35
1.3523e-05
3.702e-08
d
yr
n .2940805683264963 3.2487e-09 deg/d
Q 2.542840162573253 1.8727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      6259 days (17.14 yr)  
   first obs. used      2002-12-05  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67336  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:10:45  

Additional Information
 Earth MOID = .919774 au 
 Jupiter MOID = 2.58543 au 
 T_jup = 3.620 
[ 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 16.9   n/a MPO433793  

277231 (2005 QE181)          Discovered 2005-Aug-30 by NEAT at Palomar
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ 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
1940-Jan-07 22:16 00:02 Hebe 0.0317601224986542 0.0317484761118433 0.0317718252083916 7.62625661416084 7.62625658849449 2429636.427824751 2.1653226054154 2195.70529886826 51.9545441338502 -74.6856489163926 88187.638530645 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 14:10:47 2020-Feb-25 14:10
2124-Mar-15 20:04 00:07 Eunom 0.0157373585707759 0.0156915686717874 0.0157832602313549 5.05790315264174 5.05790297628521 2496909.336408139 6.52338663825337 3097.0654266611 63.5238004904555 -42.4734072208654 25013.7699632122 T 14 CATAB v2.0f-lin.ifort 2020-Feb-25 14:10:47 2020-Feb-25 14:10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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