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JPL Small-Body Database Browser
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12354 Hemmerechts (1993 QD3)
Classification: Main-belt Asteroid          SPK-ID: 2012354
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0536724631987143 3.4964e-08  
a 3.06610003527402 1.9606e-08 au
q 2.901534893967199 1.1038e-07 au
i 10.00873627906051 4.7799e-06 deg
node 161.9308096144993 2.2467e-05 deg
peri 307.0829414064017 4.9689e-05 deg
M 233.0518801024119 4.4107e-05 deg
tp 2459692.015118811836
(2022-Apr-22.51511881)
0.00024047 TDB
period 1961.001415169369
5.37
1.8809e-05
5.15e-08
d
yr
n .1835796737397598 1.7608e-09 deg/d
Q 3.230665176580842 2.0658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1484  
   data-arc span      9121 days (24.97 yr)  
   first obs. used      1993-08-18  
   last obs. used      2018-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51693  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:16:55  

Additional Information
 Earth MOID = 1.93028 au 
 Jupiter MOID = 1.82897 au 
 T_jup = 3.207 
[ 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 13.2   n/a MPO347622  

12354 Hemmerechts           Discovered 1993 Aug. 18 by E. W. Elst at Caussols.
Kristien Hemmerechts (b. 1955) is a Flemish author well-known for her emancipated novels. In 1990 she was awarded with the triennial prize of the Flemish Community. Wit Zand ("White Sand"), a novel written in 1992, takes place in the small French sea resort Wissant, near the English Channel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

[ 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
1950-May-10 00:01 00:02 Jupiter 1.87574885643278 1.87574837183368 1.87574934103295 3.66871929476139 3.54349704125691 2433411.500990938 1.81583278865327 127.263309300698 17.6937578961186 -82.7284413641822 3225578.2250494 T 29 CATAB v2.0e-lin.ifort 2019-Jul-12 19:17:01 2019-Jul-12 19:17
1999-Jul-06 12:30 < 00:01 Jupiter 1.95499626291356 1.95499581637116 1.95499670945595 4.12005133061881 4.01351493242201 2451366.020490949 0.445562202127691 43.8947869564013 17.4478725374998 75.4375928809334 3681929.42290945 T 29 CATAB v2.0e-lin.ifort 2019-Jul-12 19:17:01 2019-Jul-12 19:17
2009-Apr-02 20:01 < 00:01 Jupiter 1.92370273004216 1.92370234455068 1.92370311553365 3.50792814650541 3.38008032960825 2454924.333715292 0.241044720633653 51.043924917328 15.9419649977016 -86.7753899748379 3514375.32881685 T 29 CATAB v2.0e-lin.ifort 2019-Jul-12 19:17:01 2019-Jul-12 19:17
2058-Jun-01 18:01 00:01 Jupiter 1.89396566628787 1.89396518315156 1.89396614942482 4.03654535163734 3.92418845198215 2472881.250573262 1.25689387618806 98.2429348944966 17.5592250573112 82.2015637233279 3443175.85332309 T 29 CATAB v2.0e-lin.ifort 2019-Jul-12 19:17:01 2019-Jul-12 19:17
2068-Feb-23 05:55 00:02 Jupiter 1.99053027443657 1.9905295974924 1.99053095138118 3.37957763139475 3.25122943449934 2476434.746722410 1.6060160949826 72.9196941684717 22.7351568248998 -68.5469664223817 3791261.90307639 T 29 CATAB v2.0e-lin.ifort 2019-Jul-12 19:17:01 2019-Jul-12 19:17
2117-Apr-28 23:16 00:03 Jupiter 1.85556384909737 1.85556335678131 1.85556434141722 3.95049663561527 3.83320614476324 2494396.469730639 2.89875736096678 227.690238923467 17.4356797369092 86.7199690871287 3309341.10060256 T 29 CATAB v2.0e-lin.ifort 2019-Jul-12 19:17:01 2019-Jul-12 19:17
2176-Mar-25 02:49 00:05 Jupiter 1.84489679639664 1.84489637246713 1.84489722032992 3.85330512133263 3.73225500281253 2515911.617263766 4.56019829710871 350.399405864529 17.2815854109117 -88.1264715355267 3267573.0365737 T 29 CATAB v2.0e-lin.ifort 2019-Jul-12 19:17:01 2019-Jul-12 19:17

Alternate Designations
 1993 QD3 = 1996 DN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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