The Minor Planet Bulletin

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The Minor Planet Bulletin is the journal for almost all amateurs and even some professionals for publishing asteroid photometry results, including lightcurves, H-G parameters, color indexes, and shape/spin axis models. It is considered to be a refereed journal by the SAO/NASA ADS. All MPB papers are indexed in the ADS.

Print subscriptions are no longer available to individuals. Institutions (e.g., college libraries) can still obtain print copies via a special subscription. See details in MPB 37-4 or contact the editor, Richard Binzel.

Annual voluntary contributions of $5.00 or more in support of the publication are welcome.
Please send a check, drawn on a U.S. bank and payable in U.S. funds, to "Minor Planet Bulletin" and send it to:

Derald D. Nye
Minor Planet Bulletin
10385 E. Observatory Drive
Corona de Tucson, AZ 85641-2309

Authors Guide and Word Templates   (v.2.6: updated 2016 Nov 25)
Please read this updated guide since there are a number of changes from previous guides.
The ZIP file contains the Authors Guide PDF as well as a "starter" paper in Word 97 (DOT) and Word 2007+ (DOTX).

Cumulative Index to Volumes 1-44
Cumulative Asteroid Lightcurve Index (Volumes 1-44)

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Issues for the upcoming quarter-year are released on about the 21st of March, June, September, and December. Full issues and individual papers from vol 1 (1973) to present are available via links on this page.

Important: The "Download PDF" link may not retrieve the expected paper. If there is no PDF available, clicking the button will download an arbitrary page. We are working with ADS to make sure all papers are available and, if not, being able to diasable the link. The "Download Full Issue" link does retrieve the correct file.

Vol 1-7 run Jul-Jun. Vol 8-present run Jan-Dec. Only papers indexed in the ADS are included. Earlier volumes often contain more papers than listed here. It's recommended to download the full issue in vol 1-9.

Volume 44 (2017)

Volume 43 (2016)

Volume 42 (2015)

Volume 41 (2014)

Volume 40 (2013)

Volume 39 (2012)

Volume 38 (2011)

Volume 37 (2010)

Volume 36 (2009)

Volume 35 (2008)

Volume 34 (2007)

Volume 33 (2006)

Volume 32 (2005)

Volume 31 (2004)

Volume 30 (2003)

Volume 29 (2002)

Volume 28 (2001)

Volume 27 (2000)

Volume 26 (1999)

Volume 25 (1998)

Volume 24 (1997)

Volume 23 (1996)

Volume 22 (1995)

Volume 21 (1994)

Volume 20 (1993)

Volume 19 (1992)

Volume 18 (1991)

Volume 17 (1990)

Volume 16 (1989)

Volume 15 (1988)

Volume 14 (1987)

Volume 13 (1986)

Volume 12 (1985)

Volume 11 (1984)

Volume 10 (1983)

Volume 9 (1982)

Volume 8 (1981)

Volume 7 (1980)

Volumes 6-7 (1979)

Volumes 5-6 (1978)

Volumes 4-5 (1977)

Volumes 3-4 (1976)

Volumes 2-3 (1975)

Volumes 1-2 (1974)

Volume 1 (1973)

Issue 44-4 (2017 Oct-Dec)
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Photometric Observations of Main-belt Asteroids 1990 Pilcher and 8443 Svecica
Pages 287-288
Brincat, Stephen M.; Grech, Winston
2017MPBu...44..287B    Download PDF

We report on photometric observations of two main-belt asteroids, 1990 Pilcher and 8443 Svecica, that were acquired from 2017 March to May. We found the synodic rotation period of 1990 Pilcher as 2.842 ± 0.001 h and amplitude of 0.08 ± 0.03 mag and of 8443 Svecica as 20.998 ± 0.001 h and amplitude of 0.62 ± 0.03 mag.

The Rotation Period of 10041 Parkinson
Pages 288-289
Ruthroff, John C.
2017MPBu...44..288R    Download PDF

A rotation period of 5.69 h ± 0.03 h and an amplitude of 0.03 mag has been derived from one night of observations of main-belt asteroid 10041 Parkinson.

Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2017 April thru June
Pages 289-294
Warner, Brian D.
2017MPBu...44..289W    Download PDF

Lightcurves for 16 main-belt asteroids were obtained at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) from 2017 April thru June. Many of the asteroids were “strays” in the field of planned targets, demonstrating a good reason for data mining images. Analysis shows that the Hungaria asteroid (45878) 2000 WX29 may be binary.

Rotation Period Determination for 46 Hestia, 118 Peitho, 333 Badenia, 356 Liguria, and 431 Nephele
Pages 294-297
Pilcher, Frederick
2017MPBu...44..294P    Download PDF

Synodic rotation periods and amplitudes are found for 46 Hestia: 21.036 ± 0.001 h, 0.09 ± 0.01 mag; 118 Peitho: 7.805 ± 0.001 h, 0.14 ± 0.01 mag; 333 Badenia: 9.862 ± 0.001 h, 0.24 ± 0.01 mag; 356 Liguria: 31.701 ± 0.001 h or 63.395 ± 0.002 h, 0.14 ± 0.01 mag; 431 Nephele: 13.530 ± 0.001 h, 0.13 ± 0.01 mag.

Rotation Period for (332660) 2008 WL7
Pages 298
Davalos, J. A. G.; Silva, J. S.; Tamayo, F. J.; Schuster, J. W.; Alvarez, F. I.
2017MPBu...44..298D    Download PDF

The asteroid (332660) 2008 WL7 was observed on 2017 March 8. The synodic period was found to be 2.54 ± 0.15 h.

Lightcurve Analysis for 341 California, 594 Mireille, 1115 Sabauda, 1504 Lappeenranta, and 1926 Demiddelaer
Pages 299-302
Polakis, Tom; Skiff, Brian A.
2017MPBu...44..299P    Download PDF

Synodic rotation periods were determined for five mainbelt asteroids: 341 California, 317 h with suspected tumbling; 594 Mireille, 4.9671 ± 0.0004 h; 1115 Sabauda, 6.7165 ± 0.0007 h; 1504 Lappeenranta, 15.16 ± 0.01 h; and 1926 Demiddelaer, 32.095 ± 0.027 h. All the data have submitted to the ALCDEF database.

Rotation Period Determination for 213 Lilaea
Pages 303
Pilcher, Frederick; Franco, Lorenzo; Odden Carline; Sydney, Marler; Paris, Lydia; Ward, Noah S.; Yung, Victor
2017MPBu...44..303P    Download PDF

CCD photometry of 213 Lilaea in April-May 2017 yields a synodic rotation period 12.042 ± 0.001 hours and a lightcurve amplitude of 0.20 ± 0.02 magnitudes.

Lightcurve Observations of Nine Main-belt Asteroids
Pages 304-305
Warell, Johan
2017MPBu...44..304W    Download PDF

Photometric observations of nine main-belt asteroids were obtained in 2014-2016. The selected objects all had unusually favourable apparitions. Lightcurves and rotation periods are presented for 1911 Schubart, 2042 Sitarski, 2383 Bradley, 3000 Leonardo, 4974 Elford, 5471 Tunguska, 8679 Tingstäde, (16206) 2000 CL39 and (24691) 1990 RH3.

Lightcurve Analysis for 2142 Landau
Pages 306-307
Hayes-Gehrke, Melissa N.; Arrington, Kade; Brady, Josh; Christian, Sabrina; Ginsburg, Symon; McLeod-Campbell, Destiny; Musial, Christian; Pham, Andrew; Woodward, Duncan
2017MPBu...44..306H    Download PDF

Lightcurve analysis using MPO Canopus of three nights of observations of 2142 Landau produced a tentative rotation period of 19.2 ± 0.2 h, supporting a previous determination of 19.4 h.

The Rotation Period of 1117 Reginita
Pages 307
Tan, Hanjie; Li, Bin; Gao, Xing
2017MPBu...44..307T    Download PDF

The lightcurve of main-belt asteroid 1117 Reginita was determined using images taken at Xingming Observatory (C42) on four nights in 2017 Jan. Analysis of the observations shows a bimodal solution with a synodic rotation period of 2.946 ± 0.001 h and an amplitude of 0.15 mag.

Lightcurve and Rotation Period for Minor Planet 2504 Gaviola
Pages 308
Hayes-Gehrke, Melissa; Linko, David; Bhasin, Raghav; Johnson, James; Bermudez, Brian; Fedorenko, Iryna; Tillis, Katie; Vilar, Nicole
2017MPBu...44..308H    Download PDF

CCD photometric observations using iTelescope T21 of asteroid 2504 Gaviola were made in April 2017. A rotation period of 8.751 ± 0.003 h and lightcurve amplitude of 0.31 mag was determined from two nights of observations.

Lightcurve for Asteroid 4404 Enirac
Pages 309
Hayes-Gehrke, Melissa; Caffes, Rosemary; Gibson, Anthony; Honer, Alex; Hunter, Ryan; Paul, Tracey; Quimby, Coleman; Riffe, Thomas; Roberts, Mark; Schemmel, Jack; Unaegbu, Uchechukwu; Wilton, Zachary
2017MPBu...44..309H    Download PDF

CCD observations made of the asteroid 4404 Enirac during 2017 April led to a lightcurve with a rotation period of 2.9979 ± 0.0003 h and an amplitude of 0.27 mag.

Lightcurve Analysis for Near-Earth Asteroid (138404) 2000 HA24
Pages 310
Hayes-Gehrke, Melissa; de La Beaujardiere, Jack; Kotgire, Prathamesh; Piel, Austin; King, Miles; Tran, Kenneth; Kenyon, Jackson; Hagen, David; Fulling, Liam; Walters, Jason; Acuna, Alexander
2017MPBu...44..310H    Download PDF

Lightcurve analysis of asteroid (138404) 2000 HA24 from a single night of observation, 2017 April 17, yielded an estimated rotation period of 3.8 ± 0.2 h, with an amplitude of 0.3 mag.

Rotation Periods for Three Main-belt Asteroids
Pages 311-312
Franco, Lorenzo; Baj, Giorgio; Tinella, Vito; Bachini, Mauro; Succi, Giacomo; Casalnuovo, Giovanni Battista; Bacci, Paolo
2017MPBu...44..311F    Download PDF

Franco, Lorenzo; Baj, Giorgio; Tinella, Vito; Bachini, Mauro; Succi, Giacomo; Casalnuovo, Giovanni Battista; Bacci, Paolo %B Photometric observations of three main-belt asteroids were made from Italy in order to determine their synodic rotation periods. For 1022 Olympiada the period is 3.834 ± 0.001 hr, amplitude 0.66 mag. For 1602 Indiana the results are 2.601 ± 0.001 hr and 0.16 mag. and for 2501 Lohja we report 3.809 ± 0.001 hr and 0.44 mag.

Lightcurve Analysis of L4 Trojan Asteroids at the Center for Solar System Studies 2017 April-June
Pages 312-316
Stephens, Robert D.; Warner, Brian D.
2017MPBu...44..312S    Download PDF

Lightcurves for eight Jovian Trojan asteroids were obtained at the Center for Solar System Studies (CS3) from 2017 April to June.

Rotation Period Determination for 397 Vienna
Pages 316
Pilcher, Frederick; Marciniak, A.; Kaminski, K.; Horbowicz, J.; Skrzypek, J.; Oey, Julian; Ogloza, W.
2017MPBu...44..316P    Download PDF

CCD photometry of minor planet 397 Vienna shows that it has a synodic rotation period of 15.461 ± 0.001 hours, amplitude 0.16 ± 0.02 magnitudes.

Lightcurves of 131 Vala and 612 Veronika During Their 2017 Apparitions
Pages 317-318
Pilcher, Frederick
2017MPBu...44..317P    Download PDF

Synodic rotation periods and amplitudes are found for 131 Vala 5.1802 ± 0.0002 hours, 0.08 ± 0.01 magnitudes; and for 612 Veronika 8.243 ± 0.001 hours, 0.09 ± 0.01 magnitudes.

(24495) 2001 AV1 - A Suspected Very Wide Binary
Pages 319-320
Stephens, Robert D.; Warner, Brian D.; Aznar Macias, Amadeo; Benishek, Vladimir
2017MPBu...44..319S    Download PDF

We report that asteroid (24495) 2001 AV1 is a binary asteroid. It is another candidate for the special case of very wide binaries. The primary lightcurve has a period of 24.083 ± 0.005 h and an amplitude 0.58 ± 0.05 mag. and the secondary lightcurve has a period of 2.7375 ± 0.0001 h.

Asteroids Observed from CS3: 2017 April - June
Pages 321-323
Stephens, Robert D.
2017MPBu...44..321S    Download PDF

CCD photometric observations of 11 main-belt asteroids were obtained from the Center for Solar System Studies from 2017 April to June.

Lightcurve Analysis of NEA (190166) 2005 UP156: A New Fully-Synchronous Binary
Pages 324-325
Warner, Brian D.; Harris, Alan W.; Aznar Macias, Amadeo; Oey, Julian
2017MPBu...44..324W    Download PDF

CCD photometric observations of the near-Earth asteroid (190166) 2005 UP156 in 2017 May show it to be a fully-synchronous binary with rotation and orbital period P = 40.542 ± 0.008 h. The estimated effective diameter ratio of the two bodies is 0.8 ± 0.1. However, the 0.5 mag out-of-eclipse lightcurve indicates quite elongated shapes and so the size ratio should be viewed with caution.

Lightcurve Analysis of Two Near-Earth Asteroids: 2010 VB1 and 2014 JO25
Pages 327-330
Warner, Brian D.
2017MPBu...44..327W    Download PDF

CCD photometric observations were made of the near- Earth asteroids (NEAs) 2010 VB1 in 2017 June and 2014 JO25 in 2017 April. The lightcurves for both asteroids showed significant day-to-day evolution due to changing viewing aspects. For 2010 VB1, the average synodic period was 0.18919 ± 0.0002 h while the amplitude decreased in near step with the phase angle, going from 0.99 mag at 54° to 0.61 mag at 27°. For 2014 JO25, the average synodic period was 4.60 ± 0.04 h. Its amplitude ranged from 0.39 to 0.14 mag.

Lightcurve Analysis of Hilda Asteroids at the Center for Solar System Studies: 2017 April thru July
Pages 331-334
Warner, Brian D.; Stephens, Robert D.
2017MPBu...44..331W    Download PDF

Lightcurves for ten Hilda asteroids were obtained at the Center for Solar System Studies (CS3) from 2017 April thru July.

Near-Earth Asteroid Lightcurve at CS3-Palmer Divide Station: 2017 April thru June
Pages 335-344
Warner, Brian D.
2017MPBu...44..335W    Download PDF

Lightcurves for 31 near-Earth asteroids (NEAs) obtained at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) from 2017 April thru June were analyzed for rotation period and signs of satellites or tumbling.

Asteroids Observed from Estcorn Observatory
Pages 345-348
Klinglesmith, Daniel K., III
2017MPBu...44..345K    Download PDF

We provide lightcurves for seven asteroids from the Spin/Shape Modeling Opportunities listed by Warner et al. (2017)

Rotation Period Determination for 3892 Dezso and 14339 Knorre
Pages 349-350
Marchini, Alessandro; Papini, Riccardo; Salvaggio, Fabio
2017MPBu...44..349M    Download PDF

Photometric observations of two main-belt asteroids were made from the Astronomical Observatory of the University of Siena (Italy) in order to determine their synodic rotation periods. For 3892 Dezso, we found a period of 3.629 h with an amplitude of 0.47 mag. For 14339 Knorre, the period was 3.795 h with an amplitude of 0.21 mag.

Stull Observatory Lightcurve Observations: 1998-2002
Pages 350-354
DeGraff, David R.
2017MPBu...44..350D    Download PDF

Using the Stull Observatory 0.82m telescope, from July 1998 to August 2002 we observed several asteroids to measure their rotation periods. We present lightcurves periods for 314 Rosalia, 1084 Tamarwina, 1758 Naantali, 1845 Helewalda, 2544 Gubarev, 3028 Zhangguoxi, 5215 Tsurui, (20713) 1999 XA32, and (234871) 1991 GT4.

Rotation Period Determination for 3760 Poutanen and 14309 Defoy
Pages 354-355
Salvaggio, Fabio; Marchini, Alessandro; Papini, Riccardo
2017MPBu...44..354S    Download PDF

Photometric observations of the main-belt asteroids 3760 Poutanen and 14309 Defoy were performed in 2017 April-May. The data revealed a tri-modal lightcurve phased to a period of 2.956 ± 0.001 hours for 3760 Poutanen and a bimodal lightcurve phased to 3.391 ± 0.002 hours for 14309 Defoy.

Lightcurve Photometry Opportunities: 2017 October-December
Pages 355-361
Warner, Brian D.; Harris, Alan W.; Durech, Josef; Benner, Lance A.M.
2017MPBu...44..355W    Download PDF

We present lists of asteroid photometry opportunities for objects reaching a favorable apparition and having either none or poorly-defined lightcurve parameters. Additional data on these objects will help with shape and spin axis modeling via lightcurve inversion. We also include lists of objects that will be the target of radar observations. Lightcurves for these objects can help constrain pole solutions and/or remove rotation period ambiguities that might not come from using radar data alone.

Index to Volume 44
Pages 362-364
Werner, Robert
2017MPBu...44..362W    Download PDF

Index of Papers in MPB Volume 44 (2017)

In This Issue
Pages 365
Warner, Brian D.
2017MPBu...44..365W    Download PDF

This list gives those asteroids in this issue for which physical observations (excluding astrometric only) were made. This includes lightcurves, color index, and H-G determinations, etc. In some cases, no specific results are reported due to a lack of or poor quality data. The page number is for the first page of the paper mentioning the asteroid. EP is the "go to page" value in the electronic version.

copyright©2017 Brian D. Warner. Funding to support this web site is provided in part by National Science Foundtation grant AST-1507535