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146836 (2002 AR40)
Classification: Main-belt Asteroid          SPK-ID: 2146836
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06651611862497384 3.9259e-08  
a 2.802666355772097 2.0691e-08 au
q 2.616243867985337 1.172e-07 au
i 4.652293449326755 4.4964e-06 deg
node 143.1325936233348 5.535e-05 deg
peri 294.8028969483952 6.799e-05 deg
M 11.01648023270399 3.7561e-05 deg
tp 2458948.055990690874
(2020-Apr-08.55599069)
0.00017883 TDB
period 1713.78180257955
4.69
1.8978e-05
5.196e-08
d
yr
n .2100617473345412 2.3262e-09 deg/d
Q 2.989088843558858 2.2067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      439  
   data-arc span      6591 days (18.05 yr)  
   first obs. used      2002-01-09  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59888  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:39:42  

Additional Information
 Earth MOID = 1.63604 au 
 Jupiter MOID = 2.16538 au 
 T_jup = 3.316 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457213.5 (2015-Jul-10.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0638256398504215 3.9084e-08  
q 2.623108328612294 1.1636e-07 au
tp 2457232.444582552530
(2015-Jul-28.94458255)
0.00018989 TDB
node 143.2168019538606 5.5264e-05 deg
peri 294.417445984534 6.9077e-05 deg
i 4.654972308456685 4.5011e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      439  
   data-arc span      6591 days (18.05 yr)  
   first obs. used      2002-01-09  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59888  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:39:42  

Additional Information
 Jupiter MOID = 2.16538 au 
 T_jup = 3.316 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.527524581654641E-15 -4.489907270703618E-15 -3.338425874674683E-13 4.796994520934812E-16 -5.574564738837975E-14 -1.183748828718324E-15
q -4.489907270703618E-15 1.354020298410712E-14 4.054293750195916E-13 -1.534136015546312E-16 3.847318007029625E-14 3.761164916325655E-15
tp -3.338425874674683E-13 4.054293750195916E-13 3.605972127396503E-8 -3.769160573920877E-11 7.893197786677588E-9 3.914500039770907E-12
node 4.796994520934812E-16 -1.534136015546312E-16 -3.769160573920877E-11 3.054107936528293E-9 -3.052044251237321E-9 4.237274854337916E-11
peri -5.574564738837975E-14 3.847318007029625E-14 7.893197786677588E-9 -3.052044251237321E-9 4.771601065155479E-9 -4.138933380447828E-11
i -1.183748828718324E-15 3.761164916325655E-15 3.914500039770907E-12 4.237274854337916E-11 -4.138933380447828E-11 2.026027911495613E-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 15.8   n/a MPO453934  

146836 (2002 AR40)          Discovered 2002-Jan-09 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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