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85857 (1999 AK24)
Classification: Main-belt Asteroid          SPK-ID: 2085857
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1249493849497944 4.9965e-08  
a 2.429443559829264 1.4013e-08 au
q 2.125886081258359 1.1926e-07 au
i 10.08617662788322 5.288e-06 deg
node 278.1366916911546 3.1401e-05 deg
peri 288.5235328042312 3.8301e-05 deg
M 154.6296683017162 2.4392e-05 deg
tp 2458406.414474052146
(2018-Oct-14.91447405)
9.1844e-05 TDB
period 1383.116136056884
3.79
1.1967e-05
3.276e-08
d
yr
n .2602818307263202 2.252e-09 deg/d
Q 2.73300103840017 1.5764e-08 au
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      7977 days (21.84 yr)  
   first obs. used      1998-11-19  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:10:38  

Additional Information
 Earth MOID = 1.14517 au 
 Jupiter MOID = 2.33369 au 
 T_jup = 3.477 
[ show covariance matrix ]

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 15.1   n/a MPO436375  

85857 (1999 AK24)          Discovered 1999-Jan-15 by McClusky, J. V. at Fair Oaks Ranch
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
1981-Aug-07 04:44 < 00:01 Thisb 0.0369215463143333 0.0369171865095415 0.0369259068506165 4.30716324209124 4.3071631992163 2444823.697440958 0.607489084320314 345.29425164555 56.6402683157492 -51.9732212358354 77407.074479288 T 18 CATAB v2.0f-lin.ifort 2020-Oct-22 19:10:59 2020-Oct-22 19:11
2061-Apr-29 13:55 < 00:01 Iris 0.034689860325718 0.0346786935283184 0.0347010277100858 7.23813553367139 7.23813551077622 2473944.080020521 0.942932395814892 601.02658976 60.8977285585442 -22.2445204064831 33227.9344380501 T 18 CATAB v2.0f-lin.ifort 2020-Oct-22 19:10:59 2020-Oct-22 19:11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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