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85864 (1999 BJ7)
Classification: Main-belt Asteroid          SPK-ID: 2085864
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976209522177673 4.1887e-08  
a 2.43196288455994 6.5892e-09 au
q 1.951356063554937 1.0262e-07 au
i 2.452851142005744 3.0675e-06 deg
node 90.23744764832303 0.00011914 deg
peri 247.7544467812358 0.0001195 deg
M 352.4098773592378 9.2487e-06 deg
tp 2459029.706541528338
(2020-Jun-29.20654153)
3.5588e-05 TDB
period 1385.268123829131
3.79
5.6299e-06
1.541e-08
d
yr
n .2598774878359975 1.0562e-09 deg/d
Q 2.912569705564944 7.8913e-09 au
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      8993 days (24.62 yr)  
   first obs. used      1996-03-12  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50893  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:33  

Additional Information
 Earth MOID = .94379 au 
 Jupiter MOID = 2.47376 au 
 T_jup = 3.479 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457330.5 (2015-Nov-04.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978944939149133 4.1903e-08  
q 1.950183431890278 1.0273e-07 au
tp 2457645.974716309137
(2016-Sep-14.47471631)
3.6069e-05 TDB
node 90.24204802000297 0.00011916 deg
peri 248.116770826908 0.00011951 deg
i 2.453051755318587 3.0683e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      8993 days (24.62 yr)  
   first obs. used      1996-03-12  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50893  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:33  

Additional Information
 Jupiter MOID = 2.47376 au 
 T_jup = 3.479 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.755839214433542E-15 -4.299246545127513E-15 7.713095506405473E-13 5.704743651045409E-15 1.790127084570044E-13 -2.067606411243869E-15
q -4.299246545127513E-15 1.055426573415999E-14 -1.911603041457715E-12 -1.420570057271129E-14 -4.456146436534317E-13 5.102847687816793E-15
tp 7.713095506405473E-13 -1.911603041457715E-12 1.300956498896771E-9 -2.735569502106761E-12 3.656575898468705E-10 -1.542448266880678E-12
node 5.704743651045409E-15 -1.420570057271129E-14 -2.735569502106761E-12 1.419831758222129E-8 -1.41864435029787E-8 -7.262679928498251E-11
peri 1.790127084570044E-13 -4.456146436534317E-13 3.656575898468705E-10 -1.41864435029787E-8 1.428353414073653E-8 7.217502320493208E-11
i -2.067606411243869E-15 5.102847687816793E-15 -1.542448266880678E-12 -7.262679928498251E-11 7.217502320493208E-11 9.414490148180844E-12

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 16.1   n/a MPO385351  

85864 (1999 BJ7)          Discovered 1999-Jan-21 by Klet at Klet
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
2098-Jul-19 12:12 < 00:01 Juno 0.026043545235378 0.0260274397074194 0.0260596508569985 6.42685195700336 6.42685188431789 2487539.008450258 0.467535723816955 806.569614769354 50.3800113576878 -5.54990402012256 8885.8110764272 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:36 2020-Nov-12 20:59
2185-Oct-12 19:31 < 00:01 Juno 0.0318082951584905 0.0317865066443628 0.031830101485067 6.69254334120683 6.69254328405708 2519400.313369087 0.598926711158624 1609.87929964607 50.5030372001803 47.5798699774286 69557.8732700117 T 16 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:36 2020-Nov-12 20:59

Alternate Designations
 1999 BJ7 = 2001 QZ290 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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