J/A+A/659/A38 Catalogs of potential detections of asteroids (Racero+, 2022)
ESASky SSOSS: Solar System Object Search Service and the case of Psyche.
Racero E., Giordano F., Carry B., Berthier J., Mueller T., Mahlke M.,
Valtchanov I., Baines D., Kruk S., Merin B., Besse S., Kueppers M., Puga E.,
Gonzalez Nunez J., Rodriguez P., de la Calle I., Lopez-Marti B., Norman H.,
Wangblad M., Lopez-Caniego M., Alvarez Crespo N.
<Astron. Astrophys. 659, A38 (2022)>
=2022A&A...659A..38R 2022A&A...659A..38R (SIMBAD/NED BibCode)
ADC_Keywords: Solar system ; Minor planets
Keywords: minor planets, asteroids: general -
minor planets, asteroids: individual: Psyche
Abstract:
The store of data collected in public astronomical archives across the
world is continuously expanding and, thus, providing a convenient
interface for accessing this information is a major concern for
ensuring a second life for the data. In this context, Solar System
objects (SSOs) are often difficult or even impossible to query, owing
to their ever-changing sky coordinates.
Our study is aimed at providing the scientific community with a search
service for all potential detections of SSOs among the ESA astronomy
archival imaging data, called the Solar System Object Search Service
(SSOSS). We illustrate its functionalities using the case of asteroid
(16) Psyche, for which no information in the far-IR (70-500 $µ$m)
has previously been reported, to derive its thermal properties in
preparation for the upcoming NASA Psyche mission.
We performed a geometrical cross-match of the orbital path of each
object, as seen by the satellite reference frame, with respect to the
public high-level imaging footprints stored in the ESA archives. There
are about 800000 asteroids and 2000 comets included in the SSOSS,
available through ESASky, providing both targeted and serendipitous
observations. For this first release, three missions were chosen:
XMM-Newton, the Hubble Space Telescope (HST), and Herschel
Observatory.
We present a catalog listing all potential detections of asteroids
within estimated limiting magnitude or flux limit in Herschel,
XMM-Newton, and HST archival imaging data, including 909 serendipitous
detections in Herschel images, 985 in XMM-Newton Optical Monitor
camera images, and over 32000 potential serendipitous detections in
HST images. We also present a case study: the analysis of the thermal
properties of Psyche from four serendipitous Herschel detections,
combined with previously published thermal IR measurements. We see
strong evidence for an unusual drop in (hemispherical spectral)
emissivity, from 0.9 at 100um down to about 0.6 at 350um, followed by
a possible but not well-constrained increase towards 500um, comparable
to what was found for Vesta. The combined thermal data set puts a
strong constraint on Psyche's thermal inertia (between 20 to
80J/m2/s1/2/K) and favors an intermediate to low level surface
roughness (below 0.4 for the rms of surface slopes). Conclusions:
Using the example of Psyche, we show how the SSOSS provides fast
access to observations of SSOs from the ESA astronomical archives,
regardless of whether the particular object was the actual target.
This greatly simplifies the task of searching, identifying, and
retrieving such data for scientific analysis.
Description:
We present the ESASky Solar System Object Search Service, developed in
the ESAC Science Data Centre and included in the ESASky application,
with the intent of facilitating the scientific exploitation of the ESA
archival astronomy data holdings by the Solar System community. A set
of all the positional cross-matches and uncertainties, apparent
magnitudes and distances, of all asteroids included in the astorb
database by July 2019 with respect to all the high-level imaging
observations stored at the ESDC Astronomy Archives for the Hubble
Space Telescope, Herschel, and XMM-Newton Observatory is provided.
The full list of all potential detection candidates from the SSOSS is
publicly available via the ESASky TAP server,
https://sky.esa.int/esasky-tap/tap.
Together with the results currently provided by this service, we
included three catalogs with the selected potential detections with
magnitudes or thermal fluxes above instrumental sensitivity.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
hsaaster.dat 476 431639 Catalogue with the list of potential detections of
asteroids within the field of view of Herschel
Observatory observational imaging datasets
(table B1)
hstaster.dat 381 147504 Catalogue with the list of potential detections of
asteroids within the field of view of Hubble
Space Telescope observational imaging datasets
(table B2)
xmmaster.dat 400 51987 Catalogue with the list of potential detections
of asteroids within the field of view of the
XMM-Newton Optical Monitor (OM)
(table B3)
--------------------------------------------------------------------------------
See also:
B/astorb : Orbits of Minor Planets (Bowell+ 2014)
Byte-by-byte Description of file: hsaaster.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- SSOId SSO identifier (astorb database) (sso_id)
8- 20 A13 --- SSOName SSO name (astorb db) (sso_name)
22- 31 I10 --- ObsId Observation identifier (observation_id)
33- 59 A27 --- Target Target name of the observation
(target_name)
61- 65 A5 --- Inst Instrument of the observation (instrument)
67- 85 A19 --- ObsMode Observation Mode (observingmodename)
87-107 A21 "datime" StartTime Start time of the observation (start_time)
109-115 F7.1 s Dur [24.0/64498.0] Total exposure time of the
observation (duration)
117-126 A10 --- Filter Filter/band of the observation (filter)
128-149 F22.18 deg RA1deg [0.01/360.0] SSO expected right ascension
(J2000) at the start time of the
observation (radeg1)
151-173 E23.17 deg DE1deg [-75.19/88.59] SSO expected declination
(J2000) at the start time of the
observation (decdeg1)
175-188 F14.11 au Dist1 [0.0/97.02] Expected distance to the SSO
from the satellite at the start time of
the observation (dist_1)
190-194 F5.2 mag Vmag1 [6.95/36.71] SSO expected V magnitude at
the start time of the observation
(vmag1)
196-201 F6.2 deg Phase1 [0.52/117.9] SSO expected phase angle at
the start time of the observation
(phase_1)
203-208 F6.2 deg Elon1 [48.88/118.67] SSO expected elongation at
the start time of the observation
(elong_1)
210-220 E11.4 arcsec/min pmRA1 [-73.63/165.3] SSO expected proper motion
along RA axis at the start time of the
observation, pmRA*cosDE (muracosde1)
222-232 E11.4 arcsec/min pmDE1 [-40.82/96.12] SSO expected proper motion
along DE axis at the start time of the
observation (mude1)
234-242 F9.5 km/s dDist/dt1 [-38.64/37.28] SSO expected speed at the
start time of the observation
(distdot1)
244-265 E22.17 deg e_pos1 SSO positional error at the start time of
the observation (pos1degerr)
267-288 E22.17 deg RA2deg [0.0/360.0] SSO expected right ascension
(J2000) at the end time of the
observation (radeg2)
290-312 E23.17 deg DE2deg [-75.06/88.6] SSO expected declination
(J2000) at the end time of the
observation (decdeg2)
314-327 F14.11 au Dist2 [0.0/97.02] Expected distance to the SSO
from the satellite at the end time of
the observation (dist_2)
329-333 F5.2 --- Vmag2 [6.95/36.71] SSO expected magnitude V at
the end time of the observation (vmag2)
335-340 F6.2 deg Phase2 [0.52/118.4] SSO expected phase angle at
the end time of the observation (phase_2)
342-347 F6.2 deg Elon2 [48.71/118.7] SSO expected elongation at
the end time of the observation (elong_2)
349-359 E11.4 arcsec/min pmRA2 [-68.66/164.6] SSO expected proper motion
along RA axis at the end time of the
observation, pmRA*cosDE (muracosde2)
361-371 E11.4 arcsec/min pmDE2 [-56.57/96.01] SSO expected proper motion
along DE axis at the end time of the
observation (mude2)
373-381 F9.5 km/s dDist/dt2 [-38.65/37.28] expected SSO distance to
the sso from the satellite at the end
time of the observation (distdot2)
383-404 E22.17 deg e_pos2 SSO expected positional error at the end
time of the observation (pos2degerr)
406 I1 --- XmatchType [1/4] Type of match (xmatch_type) (G1)
408-416 E9.4 mJy Flux70 [0.0/499.5]? SSO theoretical flux at
70 micron (flux_70)
418-427 E10.4 mJy Flux100 [0.0/284.3]? SSO theoretical flux at
100 micron (flux_100)
429-437 E9.4 mJy Flux160 [0.0/126.0]? SSO theoretical flux at
160 micron (flux_160)
439-448 E10.4 mJy Flux250 [0.0/67.49]? SSO theoretical flux at
250 micron (flux_250)
450-459 E10.4 mJy Flux350 [0.0/35.68]? SSO theoretical flux at
350 micron (flux_350)
461-470 E10.4 mJy Flux500 [0.0/17.95]? SSO theoretical flux at
500 micron (flux_500)
472-476 A5 --- isvisible Flag indicating if corresponding detection
is above flux sensitivity (is_visible)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: hstaster.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- SSOId SSO identifier (astorb database) (sso_id)
8- 17 A10 --- SSOName SSO name (astorb db) (sso_name)
19- 27 A9 --- ObsId Observation identifier (observation_id)
29- 41 A13 --- Inst Instrument (instrument_name)
43- 55 A13 --- Target Target name of the observation
(target_name)
57- 78 A22 "datime" StartTime Start time of the observation (start_time)
80-102 F23.17 s Dur Total time duration of the observation
(exposure_duration)
104-125 F22.18 deg RA1deg [0.0/360.0] SSO expected right ascension
(J2000) at the start time of the
observation (radeg1)
127-149 E23.17 deg DE1deg [-82.06/80.23] SSO expected declination
(J2000) at the start time of the
observation (decdeg1)
151-163 F13.10 au Dist1 [0.0/96.69] Expected distance to the SSO
from the satellite at the start time of
the observation (dist_1)
165-169 F5.2 mag Vmag1 [5.56/36.94] SSO expected V magnitude at
the start time of the observation
(vmag1)
171-176 F6.2 deg Phase1 [0.01/122.26] SSO expected phase angle at
the start time of the observation
(phase_1)
178-183 F6.2 deg Elon1 [45.63/179.91] SSO expected elongation at
the start time of the observation
(elong_1)
185-195 E11.4 arcsec/min pmRA1 [-175.2/56.79] SSO expected proper motion
along RA axis at the start time of the
observation, pmRA*cosDE (muracosde1)
197-207 E11.4 arcsec/min pmDE1 [-28.8/53.47] SSO expected proper motion
along DE axis at the start time of the
observation (mude1)
209-217 F9.5 km/s dDist/dt1 [-47.81/42.75] SSO expected speed at the
start time of the observation
(distdot1)
219-240 E22.17 deg e_pos1 SSO positional error at the start time of
the observation (pos1degerr sso p)
242-264 F23.19 deg RA2deg [0.0/360.0] SSO expected right ascension
(J2000) at the end time of the
observation (radeg2)
266-288 E23.16 deg DE2deg [-82.06/80.23] SSO expected declination
(J2000) at the end time of the
observation (decdeg2)
290-302 F13.10 au Dist2 [0.0/96.69] Expected distance to the SSO
from the satellite at the end time of
the observation (dist_2)
304-308 F5.2 mag Vmag2 [5.56/36.94] SSO expected magnitude V at
the end time of the observation (vmag2)
310-315 F6.2 deg Phase2 [0.01/122.32] SSO expected phase angle at
the end time of the observation (phase_2)
317-322 F6.2 deg Elon2 [45.63/179.9] SSO expected elongation at
the end time of the observation (elong_2)
324-334 E11.4 arcsec/min pmRA2 [-193.5/60.36] SSO expected proper motion
along RA axis at the end time of the
observation, pmRA*cosDE (muracosde2)
336-346 E11.4 arcsec/min pmDE2 [-28.57/271.0] SSO expected proper motion
along DE axis at the end time of the
observation (mude2)
348-356 F9.5 km/s dDist/dt2 [-45.08/43.07] expected SSO distance to
the sso from the satellite at the end
time of the observation (distdot2)
358-379 E22.17 deg e_pos2 SSO expected positional error at the end
time of the observation (pos2degerr)
381 I1 --- XmatchType [1/3] Type of match (xmatch_type) (G1)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: xmmaster.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 I6 --- SSOId SSO identifier (astorb database) (sso_id)
8- 21 A14 --- SSOName SSO name (astorb db) (sso_name)
23- 31 I9 --- ObsId Observation identifier (observation_id)
33- 50 A18 --- Target Target name of the observation
(target_name)
52 A1 --- Filter Filter/band of the observation (filter)
54- 74 A21 "datime" StartTime Start time of the observation (start_time)
76- 81 I6 s Dur [927/145700] total exposure time of the
observation (duration)
83-103 F21.17 deg RA1deg [0.03/359.97] SSO expected right ascension
(J2000) at the start time of the
observation (radeg1)
105-127 F23.19 deg DE1deg [-73.82/70.71] SSO expected declination
(J2000) at the start time of the
observation (decdeg1)
129-141 F13.10 au Dist1 [0.03/80.55] Expected distance to the SSO
from the satellite at the start time of
the observation (dist_1)
143-147 F5.2 mag Vmag1 [8.64/35.82] SSO expected V magnitude at
the start time of the observation
(vmag1)
149-153 F5.2 deg Phase1 [0.72/99.65] SSO expected phase angle at
the start time of the observation
(phase_1)
155-160 F6.2 deg Elon1 [60.7/111.64] SSO expected elongation at
the start time of the observation
(elong_1)
162-172 E11.4 arcsec/min pmRA1 [-35.78/8.0] SSO expected proper motion
along RA axis at the start time of the
observation, pmRA*cosDE (muracosde1)
174-184 E11.4 arcsec/min pmDE1 [-5.27/17.61] SSO expected proper motion
along DE axis at the start time of the
observation (mude1)
186-194 F9.5 km/s dDist/dt1 [-48.76/34.32] SSO expected speed at the
start time of the observation
(distdot1)
196-217 E22.17 deg e_pos1 SSO positional error at the start time of
the observation (pos1degerr sso p)
219-239 F21.17 deg RAdeg2 [0.06/360.0] SSO expected right ascension
(J2000) at the end time of the
observation (radeg2)
241-264 F24.20 deg DEdeg2 [-74.0/70.69] SSO expected declination
(J2000) at the end time of the
observation (decdeg2)
266-278 F13.10 au Dist2 [0.03/80.55] Expected distance to the SSO
from the satellite at the end time of
the observation (dist_2)
280-284 F5.2 mag Vmag2 [8.63/35.82] SSO expected magnitude V at
the end time of the observation (vmag2)
286-291 F6.2 deg Phase2 [0.72/100.36] SSO expected phase angle at
the end time of the observation (phase_2)
293-298 F6.2 deg Elon2 [60.76/110.84] SSO expected elongation at
the end time of the observation (elong_2)
300-310 E11.4 arcsec/min pmRA2 [-36.03/7.84] SSO expected proper motion
along RA axis at the end time of the
observation, pmRA*cosDE (muracosde2)
312-322 E11.4 arcsec/min pmDE2 [-5.26/13.93] SSO expected proper motion
along DE axis at the end time of the
observation (mude2)
324-332 F9.5 km/s dDist/dt2 [-47.01/35.28] expected SSO distance to
the sso from the satellite at the end
time of the observation (distdot2)
334-355 E22.17 deg e_pos2 SSO expected positional error at the end
time of the observation (pos2degerr)
357 I1 --- XmatchType [1/4] Type of match (xmatch_type) (G1)
359-375 F17.13 mag mlimObs [16.73/28.63]? Limiting magnitude of the
observation (mlim_obs)
377-394 F18.15 mag Vmag1corr [10.12/39.9] SSO expected magnitude V at
the start of the observation
(vmag1_corrected)
396-400 A5 --- isvisible Flag indicating if corresponding detection
is above limiting magnitude (is_visible)
--------------------------------------------------------------------------------
Global notes:
Note (G1): Type of match as follows:
2 = inside FoV
1 = pos+error radius crossing FoV
3 = SSO path crossing FoV
4 = not explained
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Acknowledgements:
Fabrizio Giordano, fabriziogiordano77(at)gmail.com
(End) Patricia Vannier [CDSJ] 29-Nov-2021