The astrometric Gaia-FUN-SSO observation campaign of 99942 Apophis

W. Thuillot; D. Bancelin; A. Ivantsov; J. Desmars; M. Assafin; S. Eggl; D. Hestroffer; P. Rocher; B. Carry; P. David; L. Abe; M. Andreev; J. E. Arlot; A. Asami; V. Ayvasian; A. Baransky; M. Belcheva; Ph Bendjoya; I. Bikmaev; O. A. Burkhonov; U. Camci; A. Carbognani; F. Colas; A. V. Devyatkin; Sh A. Ehgamberdiev; P. Enikova; L. Eyer; A. Galeev; E. Gerlach; V. Godunova; A. V. Golubaev; D. L. Gorshanov; R. Gumerov; N. Hashimoto; M. Helvaci; S. Ibryamov; R. Ya Inasaridze; I. Khamitov; A. Kostov; A. M. Kozhukhov; Y. Kozyryev; Yu N. Krugly; V. Kryuchkovskiy; N. Kulichenko; N. Maigurova; A. Manilla-Robles; A. A. Martyusheva; I. E. Molotov; G. Nikolov; P. Nikolov; K. Nishiyama; S. Okumura; L. Palaversa; O. Parmonov; Q. Y. Peng; S. N. Petrova; G. I. Pinigin; A. Pomazan; J. P. Rivet; T. Sakamoto; N. Sakhibullin; O. Sergeev; A. V. Sergeyev; O. V. Shulga; O. Suarez; Y. Sybiryakova; N. Takahashi; V. Tarady; M. Todd; S. Urakawa; O. Uysal; O. Vaduvescu; V. Vovk; X. L. Zhang

doi:10.1051/0004-6361/201425603

The astrometric Gaia-FUN-SSO observation campaign of 99942 Apophis

W. Thuillot^*, D. Bancelin, A. Ivantsov, J. Desmars, M. Assafin, S. Eggl, D. Hestroffer, P. Rocher, B. Carry, P. David, L. Abe, M. Andreev, J. E. Arlot, A. Asami, V. Ayvasian, A. Baransky, M. Belcheva, Ph Bendjoya, I. Bikmaev, O. A. BurkhonovU. Camci, A. Carbognani, F. Colas, A. V. Devyatkin, Sh A. Ehgamberdiev, P. Enikova, L. Eyer, A. Galeev, E. Gerlach, V. Godunova, A. V. Golubaev, D. L. Gorshanov, R. Gumerov, N. Hashimoto, M. Helvaci, S. Ibryamov, R. Ya Inasaridze, I. Khamitov, A. Kostov, A. M. Kozhukhov, Y. Kozyryev, Yu N. Krugly, V. Kryuchkovskiy, N. Kulichenko, N. Maigurova, A. Manilla-Robles, A. A. Martyusheva, I. E. Molotov, G. Nikolov, P. Nikolov, K. Nishiyama, S. Okumura, L. Palaversa, O. Parmonov, Q. Y. Peng, S. N. Petrova, G. I. Pinigin, A. Pomazan, J. P. Rivet, T. Sakamoto, N. Sakhibullin, O. Sergeev, A. V. Sergeyev, O. V. Shulga, O. Suarez, Y. Sybiryakova, N. Takahashi, V. Tarady, M. Todd, S. Urakawa, O. Uysal, O. Vaduvescu, V. Vovk, X. L. Zhang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Aims. Astrometric observations performed by the Gaia Follow-Up Network for Solar System Objects (Gaia-FUN-SSO) play a key role in ensuring that moving objects first detected by ESA's Gaia mission remain recoverable after their discovery. An observation campaign on the potentially hazardous asteroid (99 942) Apophis was conducted during the asteroid's latest period of visibility, from 12/21/2012 to 5/2/2013, to test the coordination and evaluate the overall performance of the Gaia-FUN-SSO. Methods. The 2732 high quality astrometric observations acquired during the Gaia-FUN-SSO campaign were reduced with the Platform for Reduction of Astronomical Images Automatically (PRAIA), using the USNO CCD Astrograph Catalogue 4 (UCAC4) as a reference. The astrometric reduction process and the precision of the newly obtained measurements are discussed. We compare the residuals of astrometric observations that we obtained using this reduction process to data sets that were individually reduced by observers and accepted by the Minor Planet Center. Results. We obtained 2103 previously unpublished astrometric positions and provide these to the scientific community. Using these data we show that our reduction of this astrometric campaign with a reliable stellar catalog substantially improves the quality of the astrometric results. We present evidence that the new data will help to reduce the orbit uncertainty of Apophis during its close approach in 2029. We show that uncertainties due to geolocations of observing stations, as well as rounding of astrometric data can introduce an unnecessary degradation in the quality of the resulting astrometric positions. Finally, we discuss the impact of our campaign reduction on the recovery process of newly discovered asteroids.

Original language	English
Article number	A59
Journal	Astronomy and Astrophysics
Volume	583
DOIs	https://doi.org/10.1051/0004-6361/201425603
Publication status	Published - 1 Nov 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 ESO.

Funding

The authors are grateful to several engineers and technicians who punctually participated in this work. W. Thuillot, S. Eggl and D. Hestroffer acknowledge the support of European Union Seventh Framework Program (FP7/2007-2013) under grant agreement no. 282703 (NEOShield project). A. Ivantsov is grateful for the support by Mairie de Paris: Research in Paris 2012. J. Desmars was supported by CNPq grant 161605/2012-5. M.Assafin acknowledges CNPq grants 473002/2013-2, 482080/2009-4 and 308721/2011-0, FAPERJ grant 111.488/2013. We acknowledge CAPES/COFECUB programme ASTRODYN/Te-791-13 for the Brazil-France cooperation. The work performed at the RTT150/ TUBITAK National Observatory in Turkey was funded by the subsidy allocated to Kazan Federal University for the state assignment in the sphere of scientific activities. Q.Y. Peng acknowledges financial support from the National Science Foundation of China with the Grant Nos (11273014 and C1431227). This work is based in part on observations made at Observatoire de Haute Provence (CNRS), France. The authors are also grateful to D. Farnocchia (JPL) for fruitful discussions.

Funders	Funder number
European Union Seventh Framework Program
FP7/2007
Mairie de Paris
TUBITAK
Seventh Framework Programme	282703
National Natural Science Foundation of China	C1431227, 11273014
Conselho Nacional de Desenvolvimento Científico e Tecnológico	161605/2012-5, 308721/2011-0, 473002/2013-2, 482080/2009-4
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro	111.488/2013, RTT150

Keywords

Astrometry
Ephemerides
Minor planets, asteroids: individual: 99 942 Apophis

Access to Document

10.1051/0004-6361/201425603

Cite this

Thuillot, W., Bancelin, D., Ivantsov, A., Desmars, J., Assafin, M., Eggl, S., Hestroffer, D., Rocher, P., Carry, B., David, P., Abe, L., Andreev, M., Arlot, J. E., Asami, A., Ayvasian, V., Baransky, A., Belcheva, M., Bendjoya, P., Bikmaev, I., ... Zhang, X. L. (2015). The astrometric Gaia-FUN-SSO observation campaign of 99942 Apophis. Astronomy and Astrophysics, 583, Article A59. https://doi.org/10.1051/0004-6361/201425603

@article{2950b45d979a4396888d877f2606b6f7,

title = "The astrometric Gaia-FUN-SSO observation campaign of 99942 Apophis",

abstract = "Aims. Astrometric observations performed by the Gaia Follow-Up Network for Solar System Objects (Gaia-FUN-SSO) play a key role in ensuring that moving objects first detected by ESA's Gaia mission remain recoverable after their discovery. An observation campaign on the potentially hazardous asteroid (99 942) Apophis was conducted during the asteroid's latest period of visibility, from 12/21/2012 to 5/2/2013, to test the coordination and evaluate the overall performance of the Gaia-FUN-SSO. Methods. The 2732 high quality astrometric observations acquired during the Gaia-FUN-SSO campaign were reduced with the Platform for Reduction of Astronomical Images Automatically (PRAIA), using the USNO CCD Astrograph Catalogue 4 (UCAC4) as a reference. The astrometric reduction process and the precision of the newly obtained measurements are discussed. We compare the residuals of astrometric observations that we obtained using this reduction process to data sets that were individually reduced by observers and accepted by the Minor Planet Center. Results. We obtained 2103 previously unpublished astrometric positions and provide these to the scientific community. Using these data we show that our reduction of this astrometric campaign with a reliable stellar catalog substantially improves the quality of the astrometric results. We present evidence that the new data will help to reduce the orbit uncertainty of Apophis during its close approach in 2029. We show that uncertainties due to geolocations of observing stations, as well as rounding of astrometric data can introduce an unnecessary degradation in the quality of the resulting astrometric positions. Finally, we discuss the impact of our campaign reduction on the recovery process of newly discovered asteroids.",

keywords = "Astrometry, Ephemerides, Minor planets, asteroids: individual: 99 942 Apophis",

author = "W. Thuillot and D. Bancelin and A. Ivantsov and J. Desmars and M. Assafin and S. Eggl and D. Hestroffer and P. Rocher and B. Carry and P. David and L. Abe and M. Andreev and Arlot, {J. E.} and A. Asami and V. Ayvasian and A. Baransky and M. Belcheva and Ph Bendjoya and I. Bikmaev and Burkhonov, {O. A.} and U. Camci and A. Carbognani and F. Colas and Devyatkin, {A. V.} and Ehgamberdiev, {Sh A.} and P. Enikova and L. Eyer and A. Galeev and E. Gerlach and V. Godunova and Golubaev, {A. V.} and Gorshanov, {D. L.} and R. Gumerov and N. Hashimoto and M. Helvaci and S. Ibryamov and Inasaridze, {R. Ya} and I. Khamitov and A. Kostov and Kozhukhov, {A. M.} and Y. Kozyryev and Krugly, {Yu N.} and V. Kryuchkovskiy and N. Kulichenko and N. Maigurova and A. Manilla-Robles and Martyusheva, {A. A.} and Molotov, {I. E.} and G. Nikolov and P. Nikolov and K. Nishiyama and S. Okumura and L. Palaversa and O. Parmonov and Peng, {Q. Y.} and Petrova, {S. N.} and Pinigin, {G. I.} and A. Pomazan and Rivet, {J. P.} and T. Sakamoto and N. Sakhibullin and O. Sergeev and Sergeyev, {A. V.} and Shulga, {O. V.} and O. Suarez and Y. Sybiryakova and N. Takahashi and V. Tarady and M. Todd and S. Urakawa and O. Uysal and O. Vaduvescu and V. Vovk and Zhang, {X. L.}",

note = "Publisher Copyright: {\textcopyright} 2015 ESO.",

year = "2015",

month = nov,

day = "1",

doi = "10.1051/0004-6361/201425603",

language = "English",

volume = "583",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Thuillot, W, Bancelin, D, Ivantsov, A, Desmars, J, Assafin, M, Eggl, S, Hestroffer, D, Rocher, P, Carry, B, David, P, Abe, L, Andreev, M, Arlot, JE, Asami, A, Ayvasian, V, Baransky, A, Belcheva, M, Bendjoya, P, Bikmaev, I, Burkhonov, OA, Camci, U, Carbognani, A, Colas, F, Devyatkin, AV, Ehgamberdiev, SA, Enikova, P, Eyer, L, Galeev, A, Gerlach, E, Godunova, V, Golubaev, AV, Gorshanov, DL, Gumerov, R, Hashimoto, N, Helvaci, M, Ibryamov, S, Inasaridze, RY, Khamitov, I, Kostov, A, Kozhukhov, AM, Kozyryev, Y, Krugly, YN, Kryuchkovskiy, V, Kulichenko, N, Maigurova, N, Manilla-Robles, A, Martyusheva, AA, Molotov, IE, Nikolov, G, Nikolov, P, Nishiyama, K, Okumura, S, Palaversa, L, Parmonov, O, Peng, QY, Petrova, SN, Pinigin, GI, Pomazan, A, Rivet, JP, Sakamoto, T, Sakhibullin, N, Sergeev, O, Sergeyev, AV, Shulga, OV, Suarez, O, Sybiryakova, Y, Takahashi, N, Tarady, V, Todd, M, Urakawa, S, Uysal, O, Vaduvescu, O, Vovk, V & Zhang, XL 2015, 'The astrometric Gaia-FUN-SSO observation campaign of 99942 Apophis', Astronomy and Astrophysics, vol. 583, A59. https://doi.org/10.1051/0004-6361/201425603

TY - JOUR

T1 - The astrometric Gaia-FUN-SSO observation campaign of 99942 Apophis

AU - Thuillot, W.

AU - Bancelin, D.

AU - Ivantsov, A.

AU - Desmars, J.

AU - Assafin, M.

AU - Eggl, S.

AU - Hestroffer, D.

AU - Rocher, P.

AU - Carry, B.

AU - David, P.

AU - Abe, L.

AU - Andreev, M.

AU - Arlot, J. E.

AU - Asami, A.

AU - Ayvasian, V.

AU - Baransky, A.

AU - Belcheva, M.

AU - Bendjoya, Ph

AU - Bikmaev, I.

AU - Burkhonov, O. A.

AU - Camci, U.

AU - Carbognani, A.

AU - Colas, F.

AU - Devyatkin, A. V.

AU - Ehgamberdiev, Sh A.

AU - Enikova, P.

AU - Eyer, L.

AU - Galeev, A.

AU - Gerlach, E.

AU - Godunova, V.

AU - Golubaev, A. V.

AU - Gorshanov, D. L.

AU - Gumerov, R.

AU - Hashimoto, N.

AU - Helvaci, M.

AU - Ibryamov, S.

AU - Inasaridze, R. Ya

AU - Khamitov, I.

AU - Kostov, A.

AU - Kozhukhov, A. M.

AU - Kozyryev, Y.

AU - Krugly, Yu N.

AU - Kryuchkovskiy, V.

AU - Kulichenko, N.

AU - Maigurova, N.

AU - Manilla-Robles, A.

AU - Martyusheva, A. A.

AU - Molotov, I. E.

AU - Nikolov, G.

AU - Nikolov, P.

AU - Nishiyama, K.

AU - Okumura, S.

AU - Palaversa, L.

AU - Parmonov, O.

AU - Peng, Q. Y.

AU - Petrova, S. N.

AU - Pinigin, G. I.

AU - Pomazan, A.

AU - Rivet, J. P.

AU - Sakamoto, T.

AU - Sakhibullin, N.

AU - Sergeev, O.

AU - Sergeyev, A. V.

AU - Shulga, O. V.

AU - Suarez, O.

AU - Sybiryakova, Y.

AU - Takahashi, N.

AU - Tarady, V.

AU - Todd, M.

AU - Urakawa, S.

AU - Uysal, O.

AU - Vaduvescu, O.

AU - Vovk, V.

AU - Zhang, X. L.

PY - 2015/11/1

Y1 - 2015/11/1

N2 - Aims. Astrometric observations performed by the Gaia Follow-Up Network for Solar System Objects (Gaia-FUN-SSO) play a key role in ensuring that moving objects first detected by ESA's Gaia mission remain recoverable after their discovery. An observation campaign on the potentially hazardous asteroid (99 942) Apophis was conducted during the asteroid's latest period of visibility, from 12/21/2012 to 5/2/2013, to test the coordination and evaluate the overall performance of the Gaia-FUN-SSO. Methods. The 2732 high quality astrometric observations acquired during the Gaia-FUN-SSO campaign were reduced with the Platform for Reduction of Astronomical Images Automatically (PRAIA), using the USNO CCD Astrograph Catalogue 4 (UCAC4) as a reference. The astrometric reduction process and the precision of the newly obtained measurements are discussed. We compare the residuals of astrometric observations that we obtained using this reduction process to data sets that were individually reduced by observers and accepted by the Minor Planet Center. Results. We obtained 2103 previously unpublished astrometric positions and provide these to the scientific community. Using these data we show that our reduction of this astrometric campaign with a reliable stellar catalog substantially improves the quality of the astrometric results. We present evidence that the new data will help to reduce the orbit uncertainty of Apophis during its close approach in 2029. We show that uncertainties due to geolocations of observing stations, as well as rounding of astrometric data can introduce an unnecessary degradation in the quality of the resulting astrometric positions. Finally, we discuss the impact of our campaign reduction on the recovery process of newly discovered asteroids.

AB - Aims. Astrometric observations performed by the Gaia Follow-Up Network for Solar System Objects (Gaia-FUN-SSO) play a key role in ensuring that moving objects first detected by ESA's Gaia mission remain recoverable after their discovery. An observation campaign on the potentially hazardous asteroid (99 942) Apophis was conducted during the asteroid's latest period of visibility, from 12/21/2012 to 5/2/2013, to test the coordination and evaluate the overall performance of the Gaia-FUN-SSO. Methods. The 2732 high quality astrometric observations acquired during the Gaia-FUN-SSO campaign were reduced with the Platform for Reduction of Astronomical Images Automatically (PRAIA), using the USNO CCD Astrograph Catalogue 4 (UCAC4) as a reference. The astrometric reduction process and the precision of the newly obtained measurements are discussed. We compare the residuals of astrometric observations that we obtained using this reduction process to data sets that were individually reduced by observers and accepted by the Minor Planet Center. Results. We obtained 2103 previously unpublished astrometric positions and provide these to the scientific community. Using these data we show that our reduction of this astrometric campaign with a reliable stellar catalog substantially improves the quality of the astrometric results. We present evidence that the new data will help to reduce the orbit uncertainty of Apophis during its close approach in 2029. We show that uncertainties due to geolocations of observing stations, as well as rounding of astrometric data can introduce an unnecessary degradation in the quality of the resulting astrometric positions. Finally, we discuss the impact of our campaign reduction on the recovery process of newly discovered asteroids.

KW - Astrometry

KW - Ephemerides

KW - Minor planets, asteroids: individual: 99 942 Apophis

UR - http://www.scopus.com/inward/record.url?scp=84946605737&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201425603

DO - 10.1051/0004-6361/201425603

M3 - Article

AN - SCOPUS:84946605737

SN - 0004-6361

VL - 583

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A59

ER -

The astrometric Gaia-FUN-SSO observation campaign of 99942 Apophis

Abstract

Bibliographical note

Funding

Keywords

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