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604 Tekmessa (A906 DH)
Classification: Main-belt Asteroid          SPK-ID: 2000604
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1949051734835564 2.0756e-08  
a 3.157311518096576 1.0567e-08 au
q 2.541935168920332 6.8853e-08 au
i 4.41222688590151 3.9848e-07 deg
node 11.93977760979694 1.0063e-05 deg
peri 28.4577592550405 9.1378e-06 deg
M 274.3139489779982 6.4153e-06 deg
tp 2459688.233072117247
(2022-Apr-18.73307212)
3.7906e-05 TDB
period 2049.15390390816
5.61
1.0287e-05
2.816e-08
d
yr
n .1756822654039824 8.8194e-10 deg/d
Q 3.772687867272819 1.2626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2922  
   data-arc span      40228 days (110.14 yr)  
   first obs. used      1911-01-31  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45531  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:39:20  

Additional Information
 Earth MOID = 1.55002 au 
 Jupiter MOID = 1.67237 au 
 T_jup = 3.172 
[ 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 9.49   n/a E2021B10  
diameter diameter 64.536 km 0.321 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.5596 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Baker, R.E.; Warner, B.D. (2011) Minor Planet Bull. 38, 195-197.]
[Klinglesmith III, D.A.; Hanowell, J.; Risely, E.; Turk, J.; et al. (2013) Minor Planet Bull. 40, 190-193.]
[Klinglesmith III, D.A. (2017) Minor Planet Bull. 44, 127-129.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.090   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Xc   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

604 Tekmessa (A906 DH)          Discovered 1906-Feb-16 by Metcalf, J. H. at Taunton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1925-Sep-26 04:18 00:02 Jupiter 1.98380768000191 1.983807058679 1.9838083013247 3.22342922725488 3.08813210024746 2424419.679482296 1.50221324406654 20.5081739280334 5.80252513042819 28.3659207688765 3111689.41612876 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
1936-Mar-27 01:11 00:01 Jupiter 1.75056209864103 1.75056175003672 1.75056244724534 1.70790666075269 1.39614836751381 2428254.549390177 1.31603956596948 47.2497948768183 13.2533050746926 -52.9449403093089 5938728.06375559 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
1946-Oct-08 18:20 00:01 Jupiter 1.70772608286611 1.70772581778108 1.70772634795171 1.65736627281378 1.32471666242189 2432102.264200062 1.04556438263709 76.7411720071252 8.8292904836724 -63.9346248847531 15953554.2442743 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
1957-May-01 22:02 < 00:01 Jupiter 1.91492978110561 1.91492937737118 1.91493018484037 2.49052252089727 2.30609001955158 2435960.417844123 0.835640381984754 51.9386301740713 4.28720986382878 82.3571167501082 7523877.81410816 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
2031-Sep-01 05:19 < 00:01 Jupiter 1.79159173720983 1.79159153984083 1.79159193457884 2.00090467807274 1.74873282289666 2463110.721246018 0.314383835383263 9.39245553774525 7.24685468850815 13.5813508909433 4441325.65370092 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
2042-Mar-07 19:30 < 00:01 Jupiter 1.68672081137963 1.68672061662655 1.68672100613298 1.48814721597562 1.10010902109392 2466951.312408173 0.517511777701898 64.2124821510835 18.3245529269197 -52.225377243492 9784432.45189719 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
2052-Sep-26 19:50 < 00:01 Jupiter 1.83482534659744 1.83482506687021 1.83482562632509 2.15706829912201 1.93123547830317 2470807.326269885 0.726164540439928 54.564570945352 2.26617352341894 88.218108657844 8491013.14832643 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
2127-Feb-10 00:34 00:02 Jupiter 1.84999148487666 1.84999083810058 1.84999213165232 2.48704273012448 2.2955777736024 2497970.523933138 1.94790597002304 5.42851554157782 3.23407077882092 -74.9787331315651 1319576.91230689 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
2137-Aug-11 19:36 00:02 Jupiter 1.68525509423403 1.68525483792407 1.68525535054485 1.43822464809492 1.03115195461962 2501806.316333867 2.12885961836264 130.354487348585 36.3764147074327 -52.2681460881901 5541713.95089451 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40
2148-Feb-27 04:04 00:02 Jupiter 1.76899579681233 1.76899512826443 1.76899646536394 1.84597954758538 1.56525065035434 2505657.669407578 2.29876716082505 156.229604507081 5.5358528435388 -79.7498681809775 10844015.3084201 T 39 CATAB v2.0g-lin.ifort 2021-May-03 18:40:34 2021-May-03 18:40

Alternate Designations
 A906 DH = A894 BA = A911 BC = A915 WG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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