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85242 (1993 QP4)
Classification: Main-belt Asteroid          SPK-ID: 2085242
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2307491603350544 4.184e-08  
a 2.404715758115403 9.6273e-09 au
q 1.8498296160858 1.0272e-07 au
i 2.945871080494129 4.7057e-06 deg
node 134.6701923817338 6.9354e-05 deg
peri 216.417003010477 6.9933e-05 deg
M 111.5115873477113 8.0252e-06 deg
tp 2458778.598035046564
(2019-Oct-22.09803505)
3.0023e-05 TDB
period 1362.053137219145
3.73
8.1795e-06
2.239e-08
d
yr
n .2643068689192253 1.5872e-09 deg/d
Q 2.959601900145006 1.1849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      10066 days (27.56 yr)  
   first obs. used      1993-08-15  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50017  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:12:03  

Additional Information
 Earth MOID = .843207 au 
 Jupiter MOID = 2.47431 au 
 T_jup = 3.485 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457639.5 (2016-Sep-08.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2322014684136143 4.1835e-08  
q 1.845328816310703 1.028e-07 au
tp 2457417.040903371809
(2016-Jan-29.54090337)
2.9903e-05 TDB
node 134.7444260443769 6.9396e-05 deg
peri 216.3217667184083 6.9962e-05 deg
i 2.945854430904077 4.7066e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      10066 days (27.56 yr)  
   first obs. used      1993-08-15  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50017  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:12:03  

Additional Information
 Jupiter MOID = 2.47431 au 
 T_jup = 3.485 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.75016205791009E-15 -4.29018712566738E-15 -3.387975066873686E-13 1.481339131528774E-14 -1.148023254386837E-13 -1.424764097701173E-15
q -4.29018712566738E-15 1.05676042645528E-14 7.749290829161516E-13 -3.702718670581676E-14 2.686098060387708E-13 3.660184103172826E-15
tp -3.387975066873686E-13 7.749290829161516E-13 8.9421487480936E-10 -8.035608704485032E-12 2.749764997488923E-10 3.199391877963066E-13
node 1.481339131528774E-14 -3.702718670581676E-14 -8.035608704485032E-12 4.815754873955053E-9 -4.810890470853205E-9 3.769200689617461E-11
peri -1.148023254386837E-13 2.686098060387708E-13 2.749764997488923E-10 -4.810890470853205E-9 4.894627194205205E-9 -3.7563472122808E-11
i -1.424764097701173E-15 3.660184103172826E-15 3.199391877963066E-13 3.769200689617461E-11 -3.7563472122808E-11 2.215245527600459E-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 16.06   n/a MPCxxxxx  

85242 (1993 QP4)          Discovered 1993-Aug-18 by Elst, E. W. at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1980-Oct-27 06:01 < 00:01 Juno 0.0406022768980663 0.0405992458146452 0.0406053082147915 5.55558477291021 5.55558471897582 2444539.750697324 0.487761467142257 223.812147808155 55.9601146630525 -49.6442004274298 84514.6052704809 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 14:12:05 2021-Apr-13 14:12

Alternate Designations
 1993 QP4 = 2001 XM172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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