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VII/108C       Asteroids II Machine-Readable Data Base     (Binzel+ 1987)

Asteroids II Binzel R. P., Gehrels T., Matthews M. S. (ed) <The University Arizona Press, Tucson, p. 997 (1989)>
ADC_Keywords: Minor planets Abstract: This data set was assembled by E. F. Tedesco, Jet Propulsion Laboratory, in March 1988 from files provided by the contributors to the above reference. Included are asteroid names and discovery circumstances, proper elements and family identifications, asteroid lightcurve parameters, asteroid pole determinations, taxonomic classes, absolute magnitudes and slope parameters, UBV color indices, and albedos and diameters from the IRAS Asteroid and Comet Survey. The asteroid discovery tables were updated by F. Pilcher in 1994. Introduction: The Asteroids 11 data base presented herein is a compilation of asteroid data published, or in press, as of March 1988 with some updates in early 1989 except, as mentioned, the asteroid discovery tables. It is by no means all-inclusive. Excluded are data sets which have remained essentially unchanged since their publication in Asteroids (Gehrels 1979). These include the spectral reflectance and spectral parameter data sets (Chapman and Gaffey 1979), and the polarimetric and groundbased radiometric data sets (Morrison and Zellner 1979). The primary changes from the book are the omission of the asteroid proper elements by Z. Knezevic and A. Milani. A few columns in other tables were omitted of added. The new discovery data set was assembled by E. F. Tedesco, Jet Propulsion Laboratory, in March 1988. The discovery file has been updated twice and the possibility exists that some of the other files were updated prior to publication or will be updated in the future. For this reason, references to data obtained from these files should reference them explicitly. For example a reference to the rotation data base might read "Lagerkvist, C.-I., Harris, A.W., and Zappala, V. (1987). Asteroids II machine-readable data base: acquired from the ADC (catalog 7108C) in December 1997" in the references section. Naturally, a datum on an individual asteroid, at least one you are discussing in detail, should reference the original source. Although an attempt has been made to provide the information required to provide a minimum understanding of the data, the researcher is urged to refer to the more detailed discussions in the published volume. Data Sets: This machine-readable data base consists of the following files: Data Set(s) Provider(s) -------------------------------------------------------------------------------- Asteroid Names and Discovery Circumstances F. Pilcher Proper Elements and Family Identifications J.G. Williams Asteroid Lightcurve Parameters C.-I. Lagerkvist, A.W. Harris, Asteroid Pole Determinations P. Magnusson Asteroid Taxonomic Classifications D.J. Tholen Asteroid Magnitudes, UBV colors, Albedos, E.F. Tedesco and Diameters File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file discover.dat 125 6213 Names and discovery circumstances dis_note.dat 80 315 The notes for discover.dat disc_doc.txt 76 64 *Additional information on discover.dat lightcrv.dat 118 528 Lightcurve parameters ltcv_doc.txt 80 49 *Additional information on lightcrv.dat ltcv_ref.dat 80 497 References file for lightcrv.dat proper.dat 70 1796 Proper elements and family identities prop_doc.txt 80 89 *Additional information on proper.dat pole.dat 75 248 Pole determinations polenote.txt 80 67 *Additional information on pole.dat pole_ref.dat 80 140 References for pole.dat taxonomy.dat 46 982 Taxonomic classifications taxo_doc.txt 80 40 *Additional information on taxonomy.dat mag.dat 63 3317 Magnitudes, colors, albedos, and diameters
Note on *.txt: These files are based on the documents supplied by the authors. They have been supplemented with additional information from the printed volume. Information duplicated in the ReadMe was normally eliminated.
See also: VII/91 : IRAS Asteroid and Comet Survey (Veeder+ 1986) VII/190 : IRAS Minor Planet Survey (IMPS) (Tedesco 1992) B/astorb : Orbits of Minor Planets and Comets (Bowell+ 2003) Byte-by-byte Description of file: discover.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Planet Number of minor planet 6- 22 A17 --- name Name of minor planet 24- 32 A9 --- pre_name Preliminary name 34- 37 I4 yr disc.Y Year of discovery 39- 41 A3 "month" disc.M Month of discovery 43- 44 I2 d disc.D Day of discovery (in month) 47- 75 A29 --- dis_name Name of discoverer 77- 97 A21 --- dis_pl Place of discovery 99-101 I3 --- note *?Reference to note 103-125 A23 --- MPC *Reference to Minor Planet Cir.
Note on note: Notes referencing two or more discoverers with names of combined length too great to fit in the discoverer column, to give a more complete description of programs involving several persons, and to reference cases in which two numbered planets were subsequently discovered to be identical and the number and name of one of these was re-assigned to a newly discovered planet. Notes have also been used to reference conflicting discovery claims and list important independent discoveries which are no longer regarded as official. Note on MPC: References the Minor Planet Circular or Circulars in which information concerning the discovery circumstances and/or name assignment, and occasional error corrections, was first published. The author first listed these references only on 1988 Feb 2 with the publication of MPC 12781. Previously this table had been maintained without references to the original literature. Adding references from earlier publications remains a task for the future (if ever). Would anyone else like to contribute to this important assignment?
Byte-by-byte Description of file: dis_note.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Note *Note number 5- 80 A76 --- Text Text of Note
Note on Note: The note number is repeated when several lines are necessary.
Byte-by-byte Description of file: proper.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Planet Asteroid number 6- 11 F6.3 AU a Semimajor axis of orbit 12- 16 F5.3 --- e ?Eccentricity 17- 21 F5.3 --- sin_i ?Sine of inclination 22- 27 F6.1 deg wbar ?Proper longitude of perihelion (1950.0) 28- 33 F6.1 deg anode ?Proper longitude, ascending node (1950.0) 34- 39 F6.1 arcsec/a dwbar ?Rate of longitude of perihelion 40- 46 F7.1 arcsec/a dnode ?Rate of longitude of node 48- 50 A3 --- res *Note indicating resonance or special case 51- 56 F6.3 AU dMars *?Closest colinear distance to Mars 57- 62 F6.3 AU dJup ?Closest colinear distance to Jupiter 64 A1 --- q_Planet *Quality code for Palomar-Leiden astr. 66- 68 A3 --- family Family identity if appropriate 70 I1 --- Ref [1,2] Reference number
Note on res: Values 1-16 identify a secular resonance number. Commensurabilities are indicated as 1:1 for trojans, 3:2 for Hildas, etc. W L denotes an argument of perihelion librator. JXR = Jupiter crosser, SXR = Saturn crosser. This flag, when set, also means that rates and distances will have degraded accuracy (see notes in file "prop_doc.txt") Note on dMars: A negative value indicates a Mars crosser. Note on q_Planet: Quality code reserved for Palomar-Leiden asteroids. Values 1, 2, 3, 4, X, 0 are in decreasing order of accuracy. see Palomar-Leiden survey for details. A blank, not a zero, is used for numbered asteroids.
Byte-by-byte Description of file: lightcrv.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Planet ?Asteroid number 6- 21 A16 --- name Asteroid name 22 A1 --- l_per [>] Limit sign for period 23- 30 F8.3 h per *?Period 32 A1 --- l_mag1 [><]Limit sign for mag1 33- 36 F4.2 mag mag1 ?First mag., amplitude or variation 37 A1 --- l_mag2 [-><]Separator or limit sign 38- 41 F4.2 mag mag2 ?Second mag., amplitude or variation 42 A1 --- u_mag2 [? ] Uncertainty note on mag2 44 I1 --- n_mag *[1,4]? Reliability code 45- 46 A2 --- rem *Remarks code 50-118 A69 --- refs *Reference codes, as a comma-separated list.
Note on per: The period for 288 Glauke is 1150. and is in the bytes 28-32. Note on n_mag: The Reliability Codes are as follows: 1 = Very tentative result, may be completely wrong. 2 = Reasonably secure result, based on over half coverage of the lightcurve. 3 = Secure result, full lightcurve coverage, no ambiguity of period. 4 = Multiple apparition coverage, pole position reported. Note on rem: The Remarks Codes are as follows: 3 = Number of extrema per rotation cycle (e.g., 1, 3). Unless otherwise noted, two per cycle is assumed. A = Ambiguous period. The "most likely" period is listed, with other possibilities listed in a footnote ordered by asteroid number, below. D = Rotation period "determined" from published data, but not given by author(s) of original data. F = Footnote, below, ordered by asteroid number, containing additional information. N = No lightcurve published. P = Photographic photometry. V = Visual photometry. Note on refs: All references to the asteroid are cited by number in the reference file, in chronological order. The last few citations are the most recent, and should be the most useful for evaluating the current state of knowledge of a given asteroid.
Byte-by-byte Description of file: ltcv_ref.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Ref *Reference number 6- 80 A75 --- Text Reference
Note on Ref: The reference number is repeated when several lines are necessary.
Byte-by-byte Description of file: pole.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Planet Asteroid number 6- 9 A4 --- n_Planet *Source of basic data 11 A1 --- --- [( ] Possible parenthesis 12- 14 I3 deg ELpole *?Ecliptic longitude of pole 15 A1 --- u_pole [* ] indicates discordant positions 16- 18 I3 deg EBpole *?Ecliptic latitude of pole 19 A1 --- n_pole [* ] Possible parenthesis or discord 20 A1 --- spin *[-NMS] Spin direction 21 A1 --- u_spin [) ] Possible parenthesis 23 A1 --- --- [( ] Possible parenthesis 24- 26 I3 deg EL2pole *? Ecliptic longitude of pole 28- 30 I3 deg EB2pole *? Ecliptic latitude of pole 32 A1 --- spin2 *[-?NS] Spin direction 33 A1 --- u_spin2 [) ] Possible parenthesis 35 A1 --- n_pole2 *[A-C ] Note on pole position 37 A1 --- rot *Sense of rotation 42- 51 F10.8 d per ?Period of rotation 52 A1 --- n_per Mean of discordant periods = * 53 A1 --- u_per [* ] indicates discordant periods 54 A1 --- l_a/b [(< ] Possible parenthesis or limit 55- 58 F4.2 --- a/b ?Model axial ratio 59 A1 --- u_a/b [) ] Possible parenthesis 60 A1 --- --- [( ] Possible parenthesis 61- 64 F4.2 --- b/c ?Model axial ratio 65 A1 --- u_b/c [) ] Possible parenthesis 67 A1 --- n_shape *[*?E-J ] Note on shape 68- 74 A7 --- refs Reference codes
Note on n_Planet: A = Amplitudes of lightcurves; D = Individual data-points of photometric lightcurves; E = Epochs (e.g., times of lightcurve extreme); F = Fourier coefficients of photometric lightcurves; I = Infrared pre- and post-opposition differences; M = Magnitudes (usually at maximum light); O = 0ccultation observations; P = Infrared polarimetry; R = Radar observations; S = Speckle interferometry; V = Visual position angles; Z = Zero and nonzero amplitude apparitions implying pole-on view in former case. Note on ELpole, EBpole, EL2pole, EB2pole: Pole Coordinates are given in the ecliptical reference frame of equinox 1950. Note on spin and spin2: The sense of rotation is termed indeterminate (1) when the spin direction is known, but the accuracy of the pole coordinates is insufficient to give an unambiguous sense of rotation, or the pole is so close to the ecliptic and/or orbital plane that forced precession will cause the sense of rotation to alternate with time. Note on n_pole2: A = concentric ring region B = aspect circle C = at least one pole position rejected Note on rot: - = Sense of rotation not determined; P = Prograde rotation; R = Retrograde rotation; I = Indeterminate case. M = Moving Note on n_shape: * = Mean value of two significantly different solutions (or discordant shape?) ? = One or both shapes questionable E = flat region F = see ref. G = "kettle" H = rnd. cyl. J = complex
Byte-by-byte Description of file: pole_ref.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Ref *Reference identification 9- 80 A72 --- Text Reference
Note on Ref: The reference number is repeated when several lines are necessary.
Byte-by-byte Description of file: taxonomy.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Planet ?Asteroid number 6- 18 A13 --- name Asteroid name 20- 23 A4 --- ThCl *Tholen class 24- 25 A2 --- n_ThCl Uncertainty note on ThCl 27- 28 A2 --- BarCl Barucci class 30- 32 A3 --- group *Asteroid group 34 I1 --- n_Planet *? Note on asteroid
Note on ThCl: The following notation appears in the classifications: U suffix indicating an unusual spectrum; falls far from cluster center : suffix indicating noisy data :: suffix indicating very noisy data --- indicates data that are too noisy to permit classification (essentially all types would be allowed) Note on group: Due to popular demand, orbital group designations have been included in this table. The 2- or 3-letter abbreviations stand for the following groups: ATE Aten APO Apollo AMO Amor MC Mars crosser HUN Hungaria PHO Phocaea GRI Griqua CYB Cybele HIL Hilda TRO Trojan Note on n_Planet: 1: 13 Egeria. Tholen (1984) listed classification as CG. C eliminated on the basis of 24-color data. 2: 192 Nausikaa. Tholen (1984) listed classification as RS. R eliminated on the basis of 24-color data. 3: 344 Desiderata. Tholen (1984) listed classification as CSU. SU eliminated on the basis of 24-color data. 4: 515 Athalia. Tholen (1984) listed classification as U. Changed to I as explained in the introduction to the printed article on the basis of 24-color data. 5: 3200 Phaethon. From Tholen (1985IAUC.4034....1H) 6: 3551 1983 RD, 3352 1983 SA, and 1984 BC. Unpublished data of Tholen cited in Hartmann et al. (1987Icar...69...33H). 7: 3908 1980 PA and 4055 1985 DO2. From Tholen et al. (1988) 8: 1975 U2. Not a proper provisional designation. Data taken from TRIAD UBV table as published by Bowell et al. (1979). In turn, they took the data from unpublished observations by Tedesco. It is not known what this object really is.
Byte-by-byte Description of file: mag.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Planet *Minor planet number 6- 10 F5.2 mag Mag *Mean visual absolute magnitude 11- 16 F6.3 mag slope *Slope parameter 18 I1 --- q_slope *Quality of slope (3 highest) 20- 23 F4.2 mag U-B *?U-B color 25 I1 --- q_U-B *?Quality of U-B 27- 30 F4.2 mag B-V *?B-V color 32 I1 --- q_B-V *?Quality of B-V 34 I1 --- r_B-V *?Source of colors 37- 41 F5.3 --- albedo *?Visual geometric albedo 43- 47 F5.3 --- e_albedo *?Standard deviation of albedo 49- 54 F6.2 km diam *?Diameter 56- 60 F5.2 km e_diam *?Standard deviation of diameter 62- 63 I2 --- sight *?Number of sightings
Note on Planet: Asteroids numbered through 3318 are included. There is one record for each asteroid. Note on Mag: The visual absolute magnitude from the IRAS ground-based input data set. These differ from the blue absolute magnitudes (HB) given in final data product No. 4. In many cases they also differ from those published in the 1988 Russian ephemeris. Note on slope: The slope parameter from the IRAS ground-based input data set. In many cases these differ from those published in the 1988 Russian ephemeris. Note on q_slope: The quality code for the absolute magnitude and slope parameter. 3 is best and 1 worst. Note on U-B, q_U-B, B-V, and q_B-V: The U-B color index from IRAS Asteroid and Comet Survey final data product 13. The quality codes for the UBV colors were obtained as follows: Quality Code For sigma 0 > 0.05 magnitude 1 ≤ 0.05 but > 0.03 magnitude 2 ≤ 0.03 but > 0.02 magnitude, and 3 ≤ 0.02 magnitude 4 ≤ 0.02 magnitude and good agreement between results from references 1 and 2. Note on r_B-V: The reference for the UBV color(s): 1 = Bowell et al. (1979) In Asteroids (T. Gehrels, ed.), pp. 1108-1129. ("TRIAD") 2 = Zellner et al. (1985Icar...61..355Z) Icarus 61, 355-416. ("ECAS") 3 = Weighted mean of values from references 1 and 2. Note on albedo: Visual geometric albedo from IRAS Asteroid and Comet Survey final data product No. 4 Note on e_albedo: One sigma formal uncertainty in the visual geometric albedo from IRAS Asteroid and Comet Survey final data product No. 4 Note on diam and e_diam: Diameter (in km) and one sigma uncertainty from IRAS Asteroid and Comet Survey final data product No. 4 Note on sight: Number of IRAS observations used in computing the albedo and diameter (from IRAS Asteroid and Comet Survey final data product No. 4)
References: Arnold, J. R. 1969. Asteroid families and jet streams. Astron. J. 74:1235-1242. (1969AJ.....74.1235A) Barucci, M. A., Capria, M. T., Coradini, A., and Fulchignoni, M. 1987. Classification of asteroids using G-mode analysis. Icarus 72:304-324. (1987Icar...72..304B) Bien, R., and Schubart, J. 1987. Three characteristic orbital parameters for the Trojan group of asteroids. Astron. Astrophys. 175:292-298. (1987A&A...175..292B) Bowell, E., Gehrels, T., and Zellner, B. 1979. Magnitudes, colors, types, and adopted diameters of the asteroids. In Asteroids, ed. T. Gehrels (Tucson: Univ. of Arizona Press), pp. 1108-1129. Brouwer, D. 1951. Secular variations of the orbital elements of minor planets. Astron. J. 56:932. (1951AJ.....56....9B) Brouwer, D., and van Woerkom, A. J. J. 1950. The secular variations of the orbital elements of the principal planets. Astron. Papers Amer. Ephemeris 13, part 2:85- 107. Chapman, C. R., and Gaffey, M. J. 1979. Reflectance spectra for 277 asteroids. In Asteroids, ed. T. Gehrels (Tucson: Univ. of Arizona Press), pp. 655-687. Froeschle, C., and Scholl, H. 1987. Orbital evolution of asteroids near the secular resonance v6. Astron. Astrophys. 179:294-303. (1987A&A...179..294F) Gehrels, T., and Tedesco, E. 1979. Minor planets and related objects. XXVIII. Asteroid magnitudes and phase relations. Astron. J. 84:1079-1087. (1979AJ.....84.1079G) Gehrels, T., ed. 1979. Asteroids (Tucson: Univ. of Arizona Press). Gradie, J. C. and Tedesco, E. F. 1989. Radiometric albedos and diameters for 350 asteroids. Astron. J. (to be submitted). Hartmann, W. K., Tholen, D. J., and Cruikshank, D. P. 1987. The relationship of active comets, "extinct" comets, and dark asteroids. Icarus 69:33-50. (1987Icar...69...33H) Hirayama, K. 1918a. Groups of asteroids probably of common origin. Proc. Phys.-Math. Soc. Japan 11 9:354-361. Hirayama, K. 1918b. Groups of asteroids probably of common origin. Astron. J. 31:185-188. (1918AJ.....31..185H) Hirayama, K. 1919. Further notes on the families of asteroids. Proc. Phys.-Math. Soc. Japan 111 1 :52-59. Hirayama, K. 1923. Families of asteroids. Japan J. Astron. Geophys. 1:55-93. Hirayama, K. 1928. Families of asteroids. Second paper. Japan J. Astron. Geophys. 5:137-162. Hirayama, K. 1933. Present state of the families of asteroids. Proc. Imp. Acad. Japan 9:482485. Infrared Astronomical Satellite Asteroid and Comet Survey: Preprint Version No. 1. 1986. Ed. D. L. Matson, JPL internal Document No. D3698. IRAS Asteroid and Comet Survey: Preprint Version No. 1. 1986. Ed. D. L. Matson, JPL Internal Document No. D-3698. (See Cat. VII/91) Lindblad, B. A., and Southworth, R. B. 1971. A study of asteroid families and streams by computer techniques. In Physical Studies of Minor Planets, ed. T. Gehrels, NASA SP-267, pp. 337-352. McFadden, L. A., Gaffey, M. J., and McCord, T. B. 1984. Mineralogical-petrological characterization of near-Earth asteroids. Icarus 59:25-40. (1984Icar...59...25M) Morrison, D., and Zellner, B. 1979. Polarimetry and radiometry of the asteroids. In Asteroids, ed. T. Gehrels (Tucson: Univ. of Arizona Press), pp. 1090-1097. Schubart, J. 1982. Three characteristics parameters of orbits of Hilda-type asteroids. Astron. Astrophys. 114:200-204. (1982A&A...114..200S) Tedesco, E. F. 1986. Ground-based data for asteroids. In Infrared Astronomical Satellite Asteroid and Comet Survey: Preprint Version No. 1. 1986, ed. D. L. Matson, JPL Document No. 3698. (See Cat. II/190) Tedesco, E. F., Williams, J. G., Matson, D. L., Veeder, G. J., Gradie, J. C., and Lebofsky, L. A. 1989. A three-parameter asteroid taxonomy. Astron. J. 97:580-606. (1989AJ.....97..580T) Tholen, D. J. 1984. Asteroid Taxonomy from Cluster Analysis of Photometry. Ph.D. Thesis Univ. of Arizona. Tholen, D. J. 1985. (3200) 1983 T 13. IAU Circular No. 4034. (1985IAUC.4034....1H) Tholen, D. J., Hartmann, W. K., and Cruikshank, D. P. 1988. 1980 PA and 1985 DO2. IAU Circ. No. 4655. Williams J. G. 1969. Secular Perturbations in the Solar System. Ph.D. Thesis, Univ. of California at Los Angeles. Williams, J. G. 1979. Proper elements and family memberships of the asteroids. In Asteroids, ed. T. Gehrels (Tucson: Univ. of Arizona Press), pp. 1040-1063. Williams J. G., and Hierath, J. 1987. Palomar-Leiden minor planets: Proper elements, frequency distributions, belt boundaries, and family memberships. Icarus 72:276-303. (1987Icar...72..276W) Zellner, B., Tholen, D. J., and Tedesco, E. F. 1985. The eight-color asteroid survey: Results for 589 minor planets. Icarus 61 :355-416. (1985Icar...61..355Z)
(End) N.G. Roman [ADC/SSDOO] 03-Oct-1997
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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