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18254 (4062 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2018254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1147110309615689 3.2768e-08  
a 2.714557109619867 1.0787e-08 au
q 2.403167464971316 8.9166e-08 au
i 13.08335755832403 4.1456e-06 deg
node 180.676647896959 1.5538e-05 deg
peri 329.1877325244968 2.3853e-05 deg
M 105.5309179555727 1.7191e-05 deg
tp 2458917.622848389172
(2020-Mar-09.12284839)
7.7791e-05 TDB
period 1633.604425316141
4.47
9.7375e-06
2.666e-08
d
yr
n .2203715871609074 1.3136e-09 deg/d
Q 3.025946754268419 1.2025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1806  
   data-arc span      17488 days (47.88 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4803  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:07:59  

Additional Information
 Earth MOID = 1.42211 au 
 Jupiter MOID = 1.98148 au 
 T_jup = 3.315 
[ 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 14.14   n/a MPO636339  

18254 (4062 T-2)          Discovered 1973-Sep-29 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
1951-Jan-30 07:34 00:01 Jupiter 1.98738558068742 1.98738526044557 1.9873859009295 4.12084263114023 4.0160858085637 2433676.815281607 1.05557711583651 111.107053120453 13.9938907497227 -86.7573871386237 3798104.51354107 T 33 CATAB v2.0g-lin.ifort 2021-Aug-24 22:08:05 2021-Aug-24 22:08
1987-Jan-18 16:34 < 00:01 Jupiter 1.98668607307047 1.98668575782556 1.98668638831538 4.32530667518828 4.22558622417029 2446814.190316945 0.466379313660439 59.177381551232 13.8000573275789 85.9229868020435 3973530.14631323 T 33 CATAB v2.0g-lin.ifort 2021-Aug-24 22:08:05 2021-Aug-24 22:08
2188-May-18 06:39 00:03 Jupiter 1.97730887421222 1.97730839114819 1.97730935728569 4.18022647435113 4.0764630057316 2520348.776927675 2.74571705742161 280.243645159863 13.8627895065394 -85.5832601487314 3883787.08210982 T 33 CATAB v2.0g-lin.ifort 2021-Aug-24 22:08:05 2021-Aug-24 22:08

Alternate Designations
 4062 T-2 = 1998 FB74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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