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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 ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02717759411559433 6.3924e-08  
a 2.974619470805477 2.4594e-08 au
q 2.893776470179581 1.8019e-07 au
i 11.30428388929654 6.1396e-06 deg
node 106.8487882174935 4.3985e-05 deg
peri 126.6759790387693 0.00017733 deg
M 91.84949606200911 0.00017274 deg
tp 2458522.398805782353
(2019-Feb-07.89880578)		 0.00089948 TDB
period 1873.896290102171
5.13		 2.324e-05
6.363e-08		 d
yr
n .1921130864613493 2.3826e-09 deg/d
Q 3.055462471431372 2.5263e-08 au
   Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      7321 days (20.04 yr)  
   first obs. used      2000-10-01  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:23:10  

Additional Information
 Earth MOID = 1.89253 au 
 Jupiter MOID = 2.02706 au 
 T_jup = 3.232 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457725.5 (2016-Dec-03.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02574267853955177 6.1025e-08  
q 2.898266876861222 1.7031e-07 au
tp 2458547.758635471104
(2019-Mar-05.25863547)		 0.00097395 TDB
node 106.9055471856248 4.408e-05 deg
peri 131.716295262852 0.00019157 deg
i 11.29176675731442 6.1232e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      7321 days (20.04 yr)  
   first obs. used      2000-10-01  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:23:10  

Additional Information
 Jupiter MOID = 2.02706 au 
 T_jup = 3.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.724103328711578E-15 -1.031588711589507E-14 -2.514992060966777E-11 -1.032513458014119E-14 -5.024883625212162E-12 8.322057728142308E-15
q -1.031588711589507E-14 2.900418540813391E-14 7.138917658446579E-11 4.191337888712964E-14 1.419888174222786E-11 -2.041457738751286E-14
tp -2.514992060966777E-11 7.138917658446579E-11 9.485748708757858E-7 3.915376084590535E-10 1.81672551505123E-7 -1.764336718681108E-10
node -1.032513458014119E-14 4.191337888712964E-14 3.915376084590535E-10 1.94302303628094E-9 -1.831200808527463E-9 1.583759709303282E-10
peri -5.024883625212162E-12 1.419888174222786E-11 1.81672551505123E-7 -1.831200808527463E-9 3.669832935882997E-8 -1.896034399898278E-10
i 8.322057728142308E-15 -2.041457738751286E-14 -1.764336718681108E-10 1.583759709303282E-10 -1.896034399898278E-10 3.749386529886992E-11

[ 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 8 CATAB v2.0f-lin.ifort 2020-Nov-12 14:23:12 2020-Nov-12 14:23
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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