| Discovery [1] | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Lincoln Lab's ETS |
| Discovery date | 22 May 1998 |
| Designations | |
| (13241) Biyo | |
Named after | Josette Biyo [1] (Filipino educator) |
| 1998 KM41 ·1975 UB1 | |
| main-belt · Flora region background [2] | |
| Orbital characteristics [3] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 44.01 yr (16,073 d) |
| Aphelion | 2.4215 AU |
| Perihelion | 2.1263 AU |
| 2.2739 AU | |
| Eccentricity | 0.0649 |
| 3.43 yr (1,252 d) | |
| 125.48° | |
| 0° 17m 14.64s / day | |
| Inclination | 7.3001° |
| 56.739° | |
| 93.848° | |
| Physical characteristics | |
| 3.9 km (calculated) [4] [5] | |
| 4.4±0.4 h [4] [6] 2.199±0.219 h(half-period) [6] | |
| 0.24(assumed) [4] | |
| S [4] V–R = 0.380±0.03 [6] | |
| 14.2 [3] 14.3 [1] | |
13241 Biyo, provisional designation 1998 KM41, is a background asteroid from the Flora region of the inner asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 22 May 1998, by the Lincoln Near-Earth Asteroid Research team (LINEAR) at the U.S. Lincoln Laboratory Experimental Test Site in Socorro, New Mexico. The presumed S-type asteroid has a rotation period of 4.4 hours and likely an elongated shape. [6] It was later named after Filipino educator Josette Biyo. [1]
Biyo is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. [2] [7] Based on osculating Keplerian orbital elements, the asteroid has also been classified as a member of the Flora family ( 402 ), a giant asteroid clan and the largest family of stony asteroids in the main-belt. [4]
It orbits the Sun in the inner asteroid belt at a distance of 2.1–2.4 AU once every 3 years and 5 months (1,252 days; semi-major axis of 2.27 AU). Its orbit has an eccentricity of 0.06 and an inclination of 7° with respect to the ecliptic. [3] It was first identified as 1975 UB1 at the Karl Schwarzschild Observatory in 1975, extending the body's observation arc by 23 years prior to its official discovery observation at Socorro. [1]
This minor planet was named after Josette Biyo (born 1958), a Filipino educator, former executive director of the Philippine Science High School System and now the director of Department of Science and Technology- Science Education Institute. [8] The naming was part of the International Excellence in Teaching Award she received during the Intel International Science and Engineering Fair held in Louisville, Kentucky, in 2002, when she was a teacher at the Philippine Science High School in Iloilo, Philippines. Biyo was the first Asian teacher to win the Intel Excellence in Teaching Award. [1] [9] The official naming citation was published by the Minor Planet Center on 24 July 2002 ( M.P.C. 46109). [10]
In March 2011, a rotational lightcurve of Biyo was obtained from photometric observations by Italian astronomers at the Virginio Cesarini Observatory ( 157 ) in Frasso Sabino, Italy. Lightcurve analysis gave a rotation period of 4.4 hours (twice the original reported period solution of 2.199±0.219 in the R-band) with a brightness amplitude of 0.99 magnitude, which indicates that the body has an elongated, non-spheroidal shape ( U=2 ). The Italian astronomers also determined a V–R color of 0.38. [6]
For this asteroid, no observational data has been gathered by the space-based telescopes (IRAS, Akari and WISE) that surveyed large portions of the asteroid belt. [3] [4] The Collaborative Asteroid Lightcurve Link assumes an albedo for a stony asteroid of 0.24 – derived from 8 Flora, the largest member and namesake of the Flora family – and calculates a diameter of 3.92 kilometers with an absolute magnitude of 14.2. [4]
3771 Alexejtolstoj (provisional designation 1974 SB3) is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 3.7 kilometers in diameter. It was discovered on 20 September 1974, by Russian–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula. The asteroid was named after writer Aleksey Nikolayevich Tolstoy.
17102 Begzhigitova (provisional designation 1999 JB41) is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 10 May 1999, by astronomers of the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States. The asteroid was named after Akmaral Begzhigitova, an ISEF awardee of 2003.
17795 Elysiasegal (provisional designation 1998 FJ61) is a Nysian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 20 March 1998, by the LINEAR team at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, in the United States. The asteroid was named after Elysia Segal, a 2003 ISEF awardee.
17198 Gorjup (provisional designation 2000 AA31) is a stony Flora asteroid and asteroid pair from the inner regions of the asteroid belt, approximately 2.7 kilometers in diameter. It was discovered on 3 January 2000, by the Lincoln Near-Earth Asteroid Research team at the Lincoln Laboratory Experimental Test Site in Socorro, New Mexico, United States. The asteroid was named for Slovenian Niko Gorjup, a 2003 awardee of the ISEF contest.
6709 Hiromiyuki, provisional designation 1989 CD, is a background or Florian asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 2 February 1989, by Japanese amateur astronomers Masaru Arai and Hiroshi Mori at the Yorii Observatory in Japan. The possibly elongated S-type asteroid has a rotation period of 6.8 hours. It was named after the Hiroshi Mori's children, Hiroyuki and Miyuki.
3073 Kursk, provisionally known as 1979 SW11, is a stony Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 4.7 kilometers in diameter. It was discovered on 24 September 1979, by Soviet astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.
21509 Lucascavin (provisional designation 1998 KL35) is a small asteroid from the inner regions of the asteroid belt, approximately 2.5 kilometers (1.6 miles) in diameter. It is the namesake of the tiny Lucascavin family located within the Flora clan. It was discovered on 22 May 1998, by astronomers with the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico. The presumed S-type asteroid has a rotation period of 5.8 hours. It was named for the 2005-ISEF awardee Lucas James Cavin.
4185 Phystech, provisional designation 1975 ED, is a Florian or background asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 4 March 1975, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. The presumed S-type asteroid has a rotation period of 4.67 hours. It is named in honor of the Moscow Institute of Physics and Technology ("PhysTech") on its 50th anniversary.
1990 Pilcher, provisional designation 1956 EE, is a stony background asteroid from the Florian region of the inner asteroid belt, approximately 7 kilometers in diameter. It was discovered on 9 March 1956, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in Heidelberg, Germany. In 1982, it was named by the MPC for American physicist and photometrist Frederick Pilcher. The S-type asteroid has a short rotation period of 2.8 hours.
23131 Debenedictis (provisional designation 2000 AS128) is a bright background asteroid from the inner region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 5 January 2000, by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The asteroid was named for 2007-ISEF awardee Erika Alden DeBenedictis.
23327 Luchernandez (provisional designation 2001 BE31) is a Florian asteroid from the inner regions of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 20 January 2001, by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The asteroid was named for ISEF awardee Lucero Hernandez.
(11436) 1969 QR is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3.7 kilometers in diameter. It was discovered on 22 August 1969, by Czech astronomer Luboš Kohoutek at Bergedorf Observatory in Hamburg, Germany.
25108 Boström (provisional designation 1998 RV55) is a background asteroid from the central regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 14 September 1998, by astronomers of the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The asteroid was named for 2008-ISEF awardee Johan Ingemar Boström.
21501 Acevedo (provisional designation 1998 KC8) is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 2.4 kilometers in diameter.
22577 Alfiuccio (provisional designation 1998 HT51) is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 2.4 kilometers in diameter. It was discovered on 30 April 1998, by the Lowell Observatory Near-Earth-Object Search at Anderson Mesa Station in Flagstaff, Arizona, United States. It was named in memory of Alfio Grasso, an Italian boy from Sicily.
120375 Kugel, provisional designation: 2005 PB6, is a background asteroid from the inner regions of the asteroid belt, approximately 1 kilometer (0.6 miles) in diameter. It was discovered on 10 August 2005, by French amateur astronomer Claudine Rinner at her Ottmarsheim Observatory (224) in France. The stony S/Q-type asteroid in the region of the Florian clan has a tentative rotation period of 6.9 hours. It was named after French astronomer François Kugel.
30000 Camenzind (provisional designation 2000 AB138) is a very bright background asteroid from the inner region of the asteroid belt, approximately 2.6 kilometers (1.6 miles) in diameter. It was discovered on 4 January 2000, by astronomers of the Lincoln Near-Earth Asteroid Research program conducted at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States. The asteroid was named for 2014-ISTS awardee Kathy Camenzind.
32226 Vikulgupta (provisional designation 2000 OQ23) is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 3.5 kilometers in diameter.
32008 Adriángalád (provisional designation 2000 HM53) is a background asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 29 April 2000, by astronomers with the LINEAR program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States. The V-type asteroid has a rotation period of 3.0 hours. It was named for Slovak astronomer Adrián Galád. Its 1.6-kilometer sized minor-planet moon was discovered in August 2007.
(22149) 2000 WD49 (provisional designation 2000 WD49) is a Jupiter trojan from the Greek camp, approximately 50 kilometers (31 miles) in diameter. It was discovered on 21 November 2000, by astronomers with the Lincoln Near-Earth Asteroid Research at the Lincoln Lab's ETS near Socorro, New Mexico, in the United States. The dark Jovian asteroid belongs to the largest Jupiter trojans and has a rotation period of 7.84 hours. It has not been named since its numbering in February 2001.
