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85582 (1998 DW24)
Classification: Main-belt Asteroid          SPK-ID: 2085582
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1800555635828968 6.7008e-08  
a 2.674588748067326 2.0524e-08 au
q 2.193014163681589 1.8324e-07 au
i 12.95864357221458 7.1885e-06 deg
node 294.2557562101176 2.7574e-05 deg
peri 12.32934933001899 3.1034e-05 deg
M 231.5222480915689 1.6805e-05 deg
tp 2459570.676579966938
(2021-Dec-22.17657997)
7.7656e-05 TDB
period 1597.658471907211
4.37
1.839e-05
5.035e-08
d
yr
n .2253297599769546 2.5937e-09 deg/d
Q 3.156163332453063 2.422e-08 au
  Orbit Determination Parameters
   # obs. used (total)      484  
   data-arc span      8090 days (22.15 yr)  
   first obs. used      1998-02-23  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50937  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:38:05  

Additional Information
 Earth MOID = 1.17946 au 
 Jupiter MOID = 2.09753 au 
 T_jup = 3.320 
[ 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 15.4   n/a MPO351442  

85582 (1998 DW24)          Discovered 1998-Feb-23 by Spacewatch at Kitt Peak
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
1991-Jun-20 19:45 < 00:01 Iris 0.0358512324232371 0.0358491905927808 0.0358532747040709 6.40907515176378 6.40907512674457 2448428.322964959 0.888404363186698 289.959306658627 68.7142477669947 74.5348817500699 75370.0076660254 T 20 CATAB v2.0f-lin.ifort 2020-May-20 15:38:07 2020-May-20 15:38
2090-Jul-02 04:07 00:02 Eunom 0.0459396710489301 0.0459372346238356 0.0459421123742724 4.64600185759431 4.64600179182449 2484599.671440754 2.20178811873179 1002.70093228603 80.2226235503397 84.7545568049268 85244.598941977 T 20 CATAB v2.0f-lin.ifort 2020-May-20 15:38:07 2020-May-20 15:38
2131-Aug-22 01:20 00:03 Eunom 0.037401123872117 0.0373785572760027 0.0374237167737083 4.81421285443306 4.81421277647088 2499624.555550993 3.09695439318535 1927.91975824313 60.9237410861258 -54.3282432312905 74570.9251600449 T 20 CATAB v2.0f-lin.ifort 2020-May-20 15:38:07 2020-May-20 15:38

Alternate Designations
 1998 DW24 = 2000 SX312 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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