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11539 (1992 PQ2)
Classification: Main-belt Asteroid          SPK-ID: 2011539
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1266874969097495 3.7799e-08  
a 2.275358561561738 8.8176e-09 au
q 1.987099080825314 8.8611e-08 au
i 5.748984611075969 3.6202e-06 deg
node 268.2625499019267 3.9289e-05 deg
peri 104.64391201799 4.1934e-05 deg
M 359.786550669618 1.6231e-05 deg
tp 2459001.243302322171
(2020-May-31.74330232)
5.6522e-05 TDB
period 1253.641018702647
3.43
7.2873e-06
1.995e-08
d
yr
n .2871635457274305 1.6693e-09 deg/d
Q 2.563618042298163 9.9347e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1355  
   data-arc span      13451 days (36.83 yr)  
   first obs. used      1982-10-22  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51807  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:09:54  

Additional Information
 Earth MOID = .997056 au 
 Jupiter MOID = 2.92693 au 
 T_jup = 3.592 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456815.5 (2014-Jun-07.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271476799491179 3.7826e-08  
q 1.986946609381034 8.8728e-08 au
tp 2456493.833262650895
(2013-Jul-20.33326265)
5.1506e-05 TDB
node 268.3274412141169 3.9287e-05 deg
peri 104.7580117234976 4.1903e-05 deg
i 5.748435119403357 3.6202e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1355  
   data-arc span      13451 days (36.83 yr)  
   first obs. used      1982-10-22  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51807  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:09:54  

Additional Information
 Jupiter MOID = 2.92693 au 
 T_jup = 3.592 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.430793471942952E-15 -3.344670386604692E-15 -2.58863670821876E-13 3.68085221940983E-15 -6.704899802217371E-14 1.326889521928061E-16
q -3.344670386604692E-15 7.872633309677498E-15 6.642734627564696E-13 -8.743900089368794E-15 1.76174684542805E-13 -1.793574639031821E-16
tp -2.58863670821876E-13 6.642734627564696E-13 2.652909341777787E-9 -1.00535000109678E-11 7.653459231233558E-10 5.84453571084074E-13
node 3.68085221940983E-15 -8.743900089368794E-15 -1.00535000109678E-11 1.543439160208997E-9 -1.538234414760042E-9 1.539032877052773E-12
peri -6.704899802217371E-14 1.76174684542805E-13 7.653459231233558E-10 -1.538234414760042E-9 1.755882625650637E-9 -1.358218642253509E-12
i 1.326889521928061E-16 -1.793574639031821E-16 5.84453571084074E-13 1.539032877052773E-12 -1.358218642253509E-12 1.310584310351944E-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 14.6   n/a MPO435808  

11539 (1992 PQ2)          Discovered 1992-Aug-02 by Holt, H. E. at Palomar
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ 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
2011-Jun-03 19:15 < 00:01 Iris 0.0402534477001796 0.0402521092236984 0.040254786176684 2.46747209489786 2.4674720370193 2455716.302103039 0.372682542402734 66.6358337368574 52.6924400194928 0.337828942856776 90241.1835104038 T 28 CATAB v2.0f-lin.ifort 2019-Sep-24 01:09:59 2019-Sep-24 01:10
2141-Sep-27 06:10 < 00:01 Juno 0.0308515569696333 0.0308372623312395 0.0308658516997638 5.9015684458675 5.90156837904827 2503313.756645896 0.700225716577592 717.456366960779 32.9275806052916 -6.73577296013774 17626.6315386184 T 28 CATAB v2.0f-lin.ifort 2019-Sep-24 01:09:59 2019-Sep-24 01:10

Alternate Designations
 1992 PQ2 = 1982 UU9 = 1996 YX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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