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JPL Small-Body Database Browser
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146390 (2001 QJ87)
Classification: Main-belt Asteroid          SPK-ID: 2146390
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1134216051400136 5.3804e-08  
a 2.612346487590866 1.7624e-08 au
q 2.316049955786434 1.4026e-07 au
i 9.781839802952497 5.1536e-06 deg
node 244.7079189571663 3.3039e-05 deg
peri 45.14334275995109 4.393e-05 deg
M 208.1295928152738 3.2773e-05 deg
tp 2459651.101786992650
(2022-Mar-12.60178699)
0.00014333 TDB
period 1542.213836514357
4.22
1.5607e-05
4.273e-08
d
yr
n .2334306640729252 2.3623e-09 deg/d
Q 2.908643019395299 1.9623e-08 au
  Orbit Determination Parameters
   # obs. used (total)      452  
   data-arc span      6685 days (18.30 yr)  
   first obs. used      2001-08-17  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5963  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:36:09  

Additional Information
 Earth MOID = 1.31127 au 
 Jupiter MOID = 2.23405 au 
 T_jup = 3.379 
[ 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 15.7   n/a MPO320581  

146390 (2001 QJ87)          Discovered 2001-Aug-17 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ 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
1913-Aug-12 23:35 00:07 Thisb 0.0281900766870571 0.0281556302181034 0.0282245234388829 2.25356040983131 2.25356030250424 2419992.482331418 7.34183065991881 1721.00753364531 46.871355012439 4.78591977606954 7877.93429080115 T 18 CATAB v2.0f-lin.ifort 2019-Dec-14 11:36:20 2019-Dec-14 11:36
2123-Jun-27 20:57 00:05 Hebe 0.0255725993692976 0.0255319053075437 0.0256133242980118 7.9312027406771 7.93120271002617 2496647.373078062 4.80226775635922 2466.34291708718 47.9065512989816 34.625927055101 45384.014013334 T 18 CATAB v2.0f-lin.ifort 2019-Dec-14 11:36:20 2019-Dec-14 11:36
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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