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146860 (2002 AL149)
Classification: Main-belt Asteroid          SPK-ID: 2146860
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0271776021246612 6.6656e-08  
a 2.974619466489364 2.6424e-08 au
q 2.893776442156843 1.9174e-07 au
i 11.30428464168859 7.1671e-06 deg
node 106.8487853296728 4.4964e-05 deg
peri 126.6759914216536 0.000179 deg
M 91.84948828894382 0.00017355 deg
tp 2458522.398847283810
(2019-Feb-07.89884728)
0.00090387 TDB
period 1873.896286023692
5.13
2.4969e-05
6.836e-08
d
yr
n .1921130868794776 2.5598e-09 deg/d
Q 3.055462490821884 2.7142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      7241 days (19.82 yr)  
   first obs. used      2000-10-01  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 11:32:50  

Additional Information
 Earth MOID = 1.89253 au 
 Jupiter MOID = 2.02706 au 
 T_jup = 3.232 
[ 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 15.6   n/a MPO475272  

146860 (2002 AL149)          Discovered 2002-Jan-14 by LINEAR at Socorro
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
1999-Feb-22 06:48 00:01 Psych 0.0497867315798115 0.0497830230453043 0.0497904402204125 4.06672795573159 4.06672789597381 2451231.783640480 1.12773570933224 225.197234033457 84.3159051853524 38.0527766391014 60302.5515407665 T 7 CATAB v2.0f-lin.ifort 2020-Aug-25 11:33:05 2020-Aug-25 11:33
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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