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18204 (3065 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2018204
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278829294298021 4.6312e-08  
a 2.702679665132829 1.4564e-08 au
q 2.357053072245286 1.2343e-07 au
i 5.58923278126642 4.0685e-06 deg
node 261.4870515089964 4.9282e-05 deg
peri 46.53037810888962 5.2263e-05 deg
M 203.3552607017959 2.0502e-05 deg
tp 2459706.660793231791
(2022-May-07.16079323)
9.5492e-05 TDB
period 1622.894498100515
4.44
1.3118e-05
3.592e-08
d
yr
n .2218258798839697 1.7931e-09 deg/d
Q 3.048306258020371 1.6427e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1033  
   data-arc span      21763 days (59.58 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54884  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:46:13  

Additional Information
 Earth MOID = 1.34636 au 
 Jupiter MOID = 2.18039 au 
 T_jup = 3.348 
[ 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 14.8   n/a MPO492949  

18204 (3065 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/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
1923-May-10 19:46 00:02 Iris 0.0306215954811391 0.030611492696798 0.0306316985785933 4.99966909212211 4.99966905457263 2423550.323650675 2.19647447556359 527.009664145501 51.5740975535516 17.2139482067853 27554.9071282401 T 25 CATAB v2.0f-lin.ifort 2020-May-20 04:46:23 2020-May-20 04:46
1933-Aug-23 21:40 00:02 Eunom 0.041862213986518 0.0418560777219257 0.041868352586834 4.58874981405935 4.58874974098292 2427308.402491671 1.59919979329123 583.483533715392 40.0967241895609 -58.61897157432 133348.376626574 T 25 CATAB v2.0f-lin.ifort 2020-May-20 04:46:23 2020-May-20 04:46

Alternate Designations
 3065 P-L = 1999 JL43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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