Borasisi (a.k.a. 66652, 1999 RZ253) is a moving object from K2 campaign 12. You can read more information about this object at the JPL Small-Body Database Browser here. Data was taken from 15 December 2016 to 04 March 2017.
Borasisi was proposed for by Pal in GO12114. If you use this data, please cite their proposal. You can find the bibtex citation by clicking the button below.
@ARTICLE{asteriks,
author = {{Hedges}, C. and Co},
title = "{}",
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archivePrefix = "arXiv",
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@MISC{2016ktwo.propGO12114,
author = {{Pal}, P. and {Szabo}, S. and {Mueller}, M. and {Kiss}, K. and {Kiss}, K.},
title = {K2 photometry of a large sample of trans-Neptunian objects},
abstract = {Our recent studies (Pal et al. 2015, 2016, Kiss et al 2016) have
demonstrated that the K2 mission is an excellent opportunity to
obtain rotational properties of trans-Neptunian objects (TNOs).
Using long-cadence Kepler photometry focusing on the stationary
points of the apparent tracks of these objects, light curves wi
th excellent quality can be obtained, from which one can constra
in the rotation period, surface inhomogeneities, the shape of th
e object and decide, whether the true rotation period correspond
s to a single-peaked or double-peaked solution.We propose to obs
erve 13+9+9 Centaurs and trans-Neptunian objects throughout the
Campaigns 11, 12 and 13, respectively, of the K2 programme. From
our list of proposed targets, 8 also have been observed in the
framework of the ``TNOs are Cool!'' open-time key programme of t
he Herschel Space Observatory (Muller et al. 2009), therefore an
unambiguous rotational characteristics can be combined with an
unambiguous diameter and surface albedo for these objects. This
sample of ours covers various dynamical types of the population
of objects outside the main asteroid belt, including 5 Centaurs,
13 classical objects, 4 scattered disk objects and 9 resonant o
bjects. One of the resonant objects has 1:1 mean-motion resonanc
e with Neptune (namely 2012 VU85, a Trojan of Neptune) as well a
s there are four Plutinos, i.e. objects in 2:3 mean-motion reson
ance with Neptune.None of targets having Herschel/PACS thermal p
hotometry have a currently known accurate rotation period (note:
2005 TB190 has ground-based observations confirming variability
but with several aliases, see also Thirouin et al. 2012). Hence
, the K2 time series also aids the proper interpretation of ther
mal emission measurements. All of the targets having Herschel ph
otometry fall on silicon for quite long time (60+ days) with the
exception of Borasisi. This object is a binary system with a pe
riod of 46.3 days (Noll et al. 2004). Hence, the total time of 1
3+10 days when K2 is capable to perform photometry would not cov
er the binary period, however, even this shorter track could con
firm or constrain whether the objects have a synchronous rotatio
n or not.Due to the number of these targets and the comparativel
y large pixel cost w.r.t the stellar sources, we prioritize our
targets according to their brightness (i.e. the effective S/N ra
tio of the rotational light curve) as well as the existence of t
hermal infrared data. Our top priority objects include all of th
e objects having Herschel/PACS photometry. We also indicated 201
2 VU85 with priority 1. Priority 2 objects are either bright or
have interesting dynamical properties. We note that even the fai
ntest (priority 3) objects have comparable brightness to that of
2002 GV31. This object was also successfully observed by K2, yi
elding a folded light curve with good signal-to-noise ratio and
an unambiguous rotation period (Pal et al. 2015). We also note t
hat the first minor body discovered in the outer Solar System, (
2060) Chiron fell on silicon during Campaign 12. Due to the diff
erent nature of K2 data acquisition, the science case of (2060)
Chiron is described in a separate proposal.Proposed targets:}
howpublished = {K2 Proposal},
year = {2016},
month = {Februrary},
url = {https://keplerscience.arc.nasa.gov/data/k2-programs/GO12114.txt},
notes = {K2 Proposal GO12114}
}
Acknowledgement:
This work uses...
If only want the light curve of the object with the optimal aperture, download this product. This will give you one .fits file with several extensions. The first extension is the optimal apertures determined for this target. Further extensions contain a range of aperture sizes. You can read more in our readme.
Our code asteriks creates Moving Target Pixel Files, which are similar to Kepler/K2 TPFs, and contain stacks of images from the telescope. Moving TPFs track the motion of solar system objects, so that they are always centered in every image. Moving TPFs are background subtracted. The movie above shows a Moving TPF with background subtraction on the right.
You can run our code asteriks to regenerate any of these light curves yourself, or generate light curves of other objects. You can read more about our code at our GitHub Page and you can read more about how the code works in our recent paper