Grupo de Ciencias Planetarias

Planetary Science Group

U.N.S.J - San Juan - Argentina

Catalogue of asteroid polarization curves

Please make reference to: R. Gil-Hutton (2017) Catalogue of asteroid polarization curves, presented at "Asteroid, Comets, Meteors 2017", Montevideo, Uruguay.

There are 4 groups:

  • Group A: Asteroids with at least 5 measurements, excellent phase coverage and a polarization curve.
  • Group B: Asteroids with at least 4 measurements, good phase coverage and a polarization curve.
  • Group C: Asteroids with at least 3 measurements, regular phase coverage and a tentative polarization curve.
  • Group D: Asteroids with at least 3 measurements and bad phase coverage.
  • Group E: Asteroids with only 2 measurements.

The phase coverage is characterized by a flag which indicate the existence ("X") or not ("O") of a polarimetric measurement in seven bins of phase angle (0 to 3 degrees, 3 to 6 degrees, 6 to 9 degrees, 9 to 12 degrees, 12 to 15 degrees, 15 to 18 degrees, and larger than 18 degrees). The most urgent group to observe is the C since the asteroids in this group require only few observations to obtain a reliable polarization curve.

The list of papers, and their codes, from which the observations were obtained are:

a: Lupishko (2014) Ast. Polarimetric Database V8.0.
b: Cellino et al. (2006) Torino Ast. Polarimetry V1.0.
c: Masiero et al. (2007) PASP 119, 1126.
d: Rosenbush et al. (2009) Icarus 201, 655.
e: Masiero (2010) Icarus 207, 795.
f: Cellino et al. (2014) MNRAS 439, 75.
g: Zaitsev et al. (2014) KPCB 30, 155.
h: Gil-Hutton et al. (2014) AA 569, A122.
i: Bagnulo et al. (2016) AA 585, A122.
j: Belskaya et al. (2017) Icarus 284, 30.
k: Devogèle et al. (2017) MNRAS 465, 4335.
l: Gil-Hutton et al. (2017) AA 599, A114.
m: Gil-Hutton & García-Migani (2017) AA 607, A103.
n: López-Sisterna et al. (2019) submitted.

The catalogue is updated to January, 2019.

Total number of polarimetric measurements: 3152.

Total number of asteroids with polarization curves: 135.

Total number of asteroids with polarimetric measurements: 516.

Group A:

In this group there are 35 asteroids. In this file you can find a summary for each asteroid with the minimum and maximum phase angles for which observations have been made, the total number of measurements, the flag indicating the phase angle coverage and a code indicating the group.

In the following table you can find for each asteroid a complete report, including a figure showing phase angle vs. Pr and the polarization curve, the list of available measurements with a reference to the original paper, the coefficients Coe1, Coe2 and Coe3 of the best fit and the polarimetric parameters of the object with their errors.

1 3 4 5 6 7 8
9 10 16 18 19 20 21
27 29 39 40 44 51 55
59 64 84 85 210 214 324
335 347 374 431 511 704 1021

Group B:

In this group there are 100 asteroids. In this file you can find the summary.

2 11 12 13 14 15 17
23 24 25 26 30 37 41
42 43 46 47 49 54 56
63 69 71 77 78 88 93
97 102 105 113 115 119 125
128 129 130 131 132 139 140
141 142 161 165 172 192 197
200 201 204 213 216 219 230
234 236 237 243 253 268 269
276 288 317 345 349 354 376
377 386 387 409 419 420 433
434 443 456 472 476 478 487
503 584 625 660 757 762 809
863 887 980 1459 1509 1600 1627
2867 7968

Polarimetric parameters for groups A and B:

This file lists the fit constants, their errors, and the polarimetric parameters obtained from the phase-polarization curve of the asteroids in these groups.

Group C:

In this group there are 54 asteroids. In this file you can find the summary.

31 45 48 52 57 72 75
87 92 94 96 118 138 169
186 208 221 238 246 313 339
341 350 357 367 372 381 397
402 404 444 455 466 471 502
550 579 654 678 679 753 787
796 1025 2579 2763 2795 3086 3944
4005 13360 14071 16748 51068

Polarimetric parameters for group C:

This file lists the fit constants, their errors, and the polarimetric parameters obtained from the tentative phase-polarization curve of the asteroids in this group.

Group D:

In this group there are 121 asteroids. In this file you can find the summary.

22 34 53 62 67 73 76
86 89 91 95 114 122 123
124 126 134 135 147 150 152
153 158 170 183 184 188 189
194 217 220 222 226 233 250
271 273 282 292 302 305 308
337 338 351 359 369 384 426
451 458 491 504 513 532 542
554 558 573 578 588 592 599
604 620 635 661 690 702 729
747 773 785 823 824 832 834
849 876 895 914 1036 1099 1105
1166 1355 1453 1566 1580 1583 1620
1659 1685 1943 2045 2126 2271 2468
2851 3169 3353 3447 3548 4179 4543
6249 6545 13765 13807 16313 21601 22398
23912 25143 26875 48312 69880 99942100085
106059144898

Group E:

In this group there are 80 asteroids. In this file you can find the summary.

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Contact:
gcpsj@sdf-eu.org
rgilhutton@casleo.gov.ar


last modification: Enero 2019

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