AAVSO Photometric All-Sky Survey (APASS), underway since 2010,
covers the entire sky from 7.5 < V < 16.5 magnitude, and in the BVugrizY
bandpasses. A northern and a southern site are used, each with twin ASA
20cm astrographs and Apogee Aspen CG16m cameras, covering 2.9x2.9 square
degrees with 2.6arcsec pixels. Landolt and SDSS standards are used for
all-sky solutions, with typical 0.02mag calibration errors on the bright
end.
Data Release 10 is a complete reprocessing of all 500K images taken with
the system, including hundreds of nights not part of DR9. Sextractor is
used for star finding and centroiding; DAOPHOT is used for aperture
photometry; the astrometry.net plate-solving library is used for basic
astrometry, supplanted with more precise WCS that utilizes knowledge of the
optical train distortions. With these changes, DR10 includes many more
stars than prior releases.
More information is available at http://www.aavso.org/apass.
This brief tutorial shows you how to quickly add proper motions and
photometry from Gaia to (almost) any object list using the Virtual
Observatory. The VO protocol most suited to this kind of this is TAP
("table access protocol") and lets you transfer data and queries to
database servers. In the example, we will be using TOPCAT as a client.
There is no lock-in to it: There are libraries and other tools
allowing an integration of TAP operations into arbitrary workflows –
that's what standards are about. Tutorial supplements apply the
techniques to Simbad, show how to use TAP from Python, and introduce
UCDs.
The VO client Aladin offers powerful facilities of creating an
astrometrical calibration to images lacking WCS (World Coordinate
System) information. This tutorial shows how to go about doing this
for an image of the Ring Nebula in Lyr.
The BeStars project contains (1) the complete catalogue of classical Be stars, BeSC, with some of their fundamental stellar parameters, and (2) a database, BeSS, which assembles classical Be star spectra obtained by professional and amateur astronomers at any wavelength, epoch, and spectral resolution.
The BeSS database assembles classical Be star spectra obtained by professional and amateur astronomers at any wavelength, epoch, and spectral resolution.
This data collection contains fits (both good and bad) that were
found during R. J. Wilson et al's grant from NASA's Cassini Data
Analysis Program (NNX12AG90G).
Cassini-Huygens Plasma Spectrometer (CAPS) Calibrated Electron
Spectrometer Data Collection
Short Name:
CO-CAPS-ELS
Date:
16 Dec 2022 17:19:17
Publisher:
Planetary Data System
Description:
This collection consists of all of the calibrated electron
spectrometer data from the Cassini Plasma Spectrometer (CAPS) on-board
the Cassini spacecraft during the entire Cassini mission.
Cassini-Huygens Plasma Spectrometer (CAPS) Calibrated Ion Beam
Spectrometer Data Collection
Short Name:
CO-CAPS-IBS
Date:
15 Dec 2022 19:26:37
Publisher:
Planetary Data System
Description:
This collection consists of all of the calibrated ion beam
spectrometer data from the Cassini Plasma Spectrometer (CAPS) on-board
the Cassini spacecraft during the entire Cassini mission.
Cassini-Huygens Plasma Spectrometer (CAPS) Calibrated Ion Mass
Spectrometer Ion Data Collection
Short Name:
CO-CAPS-ION
Date:
15 Dec 2022 19:24:19
Publisher:
Planetary Data System
Description:
This collection consists of all of the calibrated Ion Mass
Spectrometer ion data from the Cassini Plasma Spectrometer (CAPS)
on-board the Cassini spacecraft during the entire Cassini mission.
Cassini-Huygens Plasma Spectrometer (CAPS) Calibrated Ion Mass
Spectrometer Singles Data Collection
Short Name:
CO-CAPS-SNG
Date:
15 Dec 2022 19:30:05
Publisher:
Planetary Data System
Description:
This collection consists of all of the calibrated ion mass
spectrometer singles data from the Cassini Plasma Spectrometer (CAPS)
on-board the Cassini spacecraft during the entire Cassini mission.
Cassini-Huygens Plasma Spectrometer (CAPS) Calibrated Ion Mass
Spectrometer 'Time Of Flight' Linear Electric Field Data Collection
Short Name:
CO-CAPS-TOFLEF
Date:
15 Dec 2022 19:27:24
Publisher:
Planetary Data System
Description:
This collection consists of all of the calibrated ion mass
spectrometer 'time of flight' linear electric field data from the
Cassini Plasma Spectrometer (CAPS) on-board the Cassini spacecraft
during the entire Cassini mission.
Cassini-Huygens Plasma Spectrometer (CAPS) Calibrated Ion Mass
Spectrometer 'Time Of Flight' Straight Through Data Collection
Short Name:
CO-CAPS-TOFST
Date:
15 Dec 2022 19:30:57
Publisher:
Planetary Data System
Description:
This collection consists of all of the calibrated ion mass
spectrometer 'time of flight' straight through data from the Cassini
Plasma Spectrometer (CAPS) on-board the Cassini spacecraft during the
entire Cassini mission.
Cassini-Huygens Plasma Spectrometer (CAPS) Derived Electron Moments
Data Collection
Short Name:
CO-CAPS-DDR-ELE
Date:
15 Dec 2022 19:27:26
Publisher:
Planetary Data System
Description:
This collection consists of all of the electron moments data
generated from the Cassini Plasma Spectrometer (CAPS) electron
spectrometer uncalibrated data.
Cassini MAG Calibrated 1 Min. Avg. Data in KRTP Coords. Collection
Short Name:
CO-MAG-1MKRTP
Date:
01 Mar 2024 22:04:43
Publisher:
Planetary Data System
Description:
This collection contains Cassini magnetic-field 1 minute averages in
KRTP coordinates, from the Fluxgate Magnetometer (FGM) instrument.
KRTP coordinates are the standard right-handed spherical triad: R
(Saturn to spacecraft), Phi (parallel to Saturn's equator), and Theta
(completes right handed set).
Cassini MAG Calibrated 1 Min. Avg. Data in KSM Coords. Collection
Short Name:
CO-MAG-1MKSM
Date:
01 Mar 2024 22:05:18
Publisher:
Planetary Data System
Description:
This collection contains Cassini magnetic-field 1 minute averages in
KSM coordinates, from the Fluxgate Magnetometer (FGM) instrument. KSM
coordinates consist of X (Saturn to Sun), Z (X-Z plane contains
Saturn's centered magnetic dipole axis, M), and Y (completes right
handed set)
Cassini MAG Calibrated 1 Min. Avg. Data in KSO Coords. Collection
Short Name:
CO-MAG-1MKSO
Date:
01 Mar 2024 22:10:29
Publisher:
Planetary Data System
Description:
This collection contains Cassini magnetic-field 1 minute averages in
KSO coordinates, from the Fluxgate Magnetometer (FGM) instrument. KSO
coordinates consist of X (Saturn to Sun), Z (parallel to Saturn's
orbital plane upward normal), and Y (completes the right handed set).
Cassini MAG Calibrated 1 Min. Avg. Data in RTN Coords. Collection
Short Name:
CO-MAG-1MRTN
Date:
01 Mar 2024 22:11:02
Publisher:
Planetary Data System
Description:
This collection contains Cassini magnetic-field 1 minute averages,
from the Cassini Fluxgate Magnetometer (FGM), in RTN coordinates. RTN
coordinates consist of R (radial component, Sun to the spacecraft), T
(tangential component, parallel to the Solar Equatorial plane and
perpendicular to R), and N (normal component, completes right handed
set).
Cassini RPWS Electron Densities from Upper Hybrid and Plasma Wave
Frequencies
Short Name:
CO-RPWS-ELC-DEN
Date:
16 Dec 2022 17:29:24
Publisher:
Planetary Data System
Description:
This collection provides electron number density values derived from
features observed in plasma wave data obtained by the Cassini Radio
and Plasma Wave Science (RPWS) instruments, along with observed or
derived characteristic frequencies, and useful positional parameters
for the spacecraft and related bodies. When present, frequency values
of narrowband emissions at the upper hybrid resonance were digitized
and combined with measured or model magnetic field to derive electron
number density. At other times, features such as the upper cutoff in
auroral hiss or electron plasma oscillations were used to determine
the plasma frequency and electron density.
Cassini Scalar Helium MAG Calibrated Housekeeping ASCII Data
Collection
Short Name:
CO-MAG-SHHKA
Date:
01 Mar 2024 22:33:54
Publisher:
Planetary Data System
Description:
This collections contains Cassini scalar helium magnetometer (SHM)
housekeeping ASCII data collected between 1999-08-18T02:56:40.391 and
2005-06-08T15:14:44.057.
Main characteristics of Solar System planets. Data are included in
the table, which includes non-standard EPN-TAP parameters. Data are
retrieved from Archinal et al 2018 (IAU report 2015,
2018CeMDA.130...22A) [radii] and Cox et al 2000 (Allen's astrophysical
quantities, 2000asqu.book.....C) [masses, heliocentric distances, and
rotation periods].
Pic du Midi de Bigorre in the French Pyrenees is the place where coronagraphic images were first realized, by Bernard Lyot in the 1930s. Since then, the solar instruments at Pic du Midi regularly provide images of the solar disc, solar prominences and solar corona.
This tutorial uses SPLAT-VO to search the VO registry for spectra of
galaxies and quasars. From the obtained spectra, the Hydrogen Lyman
Alpha line will be used to compute redshift and velocity
Within this intermediate use case you learn about supernovae (see
also the tutorial “Distance to the Crab Nebula“,
ivo://edu.euro-vo.org/tutorials/08_m1_distance) and determine the
celestial coordinates of a just discovered candidate supernova on an
provided image without astrometric calibration. This use case provides
a glimpse of an activity that is representative of the practical tasks
that astronomers have to perform when they analyze data.
Data for numerical modeling of planetary atmospheres
Date:
12 Jun 2017 10:19:38
Publisher:
Instituto de Astrofisica de Andalucia-CSIC; INTA-CAB
Description:
Numerical modeling of composition and thermal balance of planetary
atmospheres requires a considerable amount of laboratory data. Among
them, the absorption cross sections in the UV range are needed both
for computing the heating in the atmosphere and the photodissociation
coefficients to initiate a rich disequilibrium chemistry. Prompted by
these needs in the community and by the sparse collection of data in
several other web pages (http://www.science-softcon.de/ or
http://satellite.mpic.de/spectral_atlas/index.html whose data depend
on some pre-processing before being ingested in these models), this
web page aims at providing the community with absorption cross
sections in the range 20 nm to 400 nm equally spaced every 0.2, 0.5
and 1.0 nm. Also, original data as appearing in the refereed journal
and the reference itself are downloadable.
The First Byurakan Survey (FBS) is the largest and the first systematic objective prism survey of the extragalactic sky. It covers 17,000 sq.deg. in the Northern sky together with a high galactic latitudes region in the Southern sky. The FBS has been carried out by B.E. Markarian, V.A. Lipovetski and J.A. Stepanian in 1965-1980 with the Byurakan Observatory 102/132/213 cm (40"/52"/84") Schmidt telescope using 1.5 deg. prism. Each FBS plate contains low-dispersion spectra of some 15,000-20,000 objects; the whole survey consists of about 20,000,000 objects.
VO-compliant publication of Schmidt survey ESO-R of the southern sky digitized with the MAMA microdensitometer at the Observatoire de Paris Image Analysis Centre (CAI).
VO-compliant publication of the properties of the 3838 galaxies that were monitored for SNe events, including newly determined morphologies and their DENIS and POSS-II/UKST I, 2MASS and DENIS J and Ks and 2MASS H magnitudes.
The principal research topics of the GEPI (Galaxy - Star - Physics - Instrumentation) Laboratory are the formation and evolution of stars in our Galaxy as well as in numerous other galaxies, which constitute the luminous matter (baryonic matter) component of the Universe. This research calls upon many disciplines, from chemistry to physics, from instrumentation to data-processing engineering, and from project management to financial management within an international framework.
Galileo EPD Calibrated Corrected Delta Event Data Collection
Short Name:
EPD-DELTA-EVE
Date:
15 Dec 2022 19:26:15
Publisher:
Planetary Data System
Description:
These are reprocessed measurements by the Engergetic Particle
Detector (EPD) instrument onboard the Galileo spacecraft that orbited
Jupiter and measured intensities of ion and electron radiation in the
keV and MeV energy range. This set is version 31 of reprocessing and
version 1.0 of PDS delivery. The TOFxE and DeltaExE files include
event data of ion measurements. Event data are different than the
channelized data in the high, medium, and low resolution files. Event
data record the full information of a measured particle. Every "event"
is the measurement of a time of flight (TOF) within the instrument and
energy deposited within a detector (TOFxE file), or two energy values
deposited within the two detector layers (DeltaExE file). The
deposited energy values are generally different from the energy the
particle has in the ambient space. Event data provides measured values
in the native resolution of the instrument. Because such high
resolution increases data volume, event data cannot be taken
continuously and downlinked all the time. Only the provided subset of
this data was kept. The files are comma separated. Invalid entries
will have values of -1.000000E+38. Times are provided in the format
Year.DOYHHMMSSM (first column) and fractional year (second column)
More information can be found in the User Guide. This file includes
measurements by the EPD/CMS/DeltaExE instrument. For each counted
event, the energy deposited in the two solid state detector layers
(Ej_keV and Ek_keV columns) of the instrument are recorded.
Galileo EPD Calibrated Corrected High Res Data Collection
Short Name:
EPD-HIGH-RES
Date:
15 Dec 2022 19:27:32
Publisher:
Planetary Data System
Description:
These are reprocessed measurements by the Engergetic Particle
Detector (EPD) instrument onboard the Galileo spacecraft that orbited
Jupiter and measured intensities of ion and electron radiation in the
keV and MeV energy range. This set is version 31 of reprocessing and
version 1.0 of PDS delivery. Data in the high resolution files include
measurements that are binned into channels responding to certain
energy and species ranges. The files are comma separated. Invalid
entries will have -1.000000E+38 as an entry. The first 4 lines of each
data text file provide information on the channels included here: The
first line of each file lists the names of the channels included. The
second line lists the center energies of these channels in keV. The
third line lists the channels again. The forth line lists the mass of
the measured particle in AMU. Zero mass refers to electrons. The forth
line in the data text file labels the columns that follow in the file.
The columns include times, radiation measurements, spacecraft
location, instrument look direction, and some supplementary
information. Radiation measurements are provided both as best
calibrated and cleaned intensities as well as raw, uncorrected count
rates. Columns with channel names followed by a "j" include calibrated
differential intensities of the given channel. If the value is
negative, it should be ignored and particularly not included in
averages. For the difference between -1.000000E+38 and all other
negative values, see the User Guide. Columns ending with "f" provide
differential intensities based on a combination of various channels.
Columns ending with "i" include calibrated integral intensities.
Columns with plain channel names describe the raw uncorrected count
rate. Columns ending with "bg" are raw count rates measured behind the
calibration shield. Each following line will provide the same data but
for different times. More information can be found in the User Guide.
This file provides data with the highest available time and pitch
angle resolution. Only a small set of channels is provided, limiting
the energy resolution and coverage. If columns with plain channel
names have -1.000000E+38 values, you might find valid values in the
lower resolution files.
Galileo EPD Calibrated Corrected Low Res Data Collection
Short Name:
EPD-LOW-RES
Date:
15 Dec 2022 19:28:50
Publisher:
Planetary Data System
Description:
These are reprocessed measurements by the Engergetic Particle
Detector (EPD) instrument onboard the Galileo spacecraft that orbited
Jupiter and measured intensities of ion and electron radiation in the
keV and MeV energy range. This set is version 31 of reprocessing and
version 1.0 of PDS delivery. Data in the low resolution files include
measurements that are binned into channels responding to certain
energy and species ranges. The files are comma separated. Invalid
entries will have -1.000000E+38 as an entry. The first 4 lines of each
data text file provide information on the channels included here: The
first line of each file lists the names of the channels included. The
second line lists the center energies of these channels in keV. The
third line lists the channels again. The forth line lists the mass of
the measured particle in AMU. Zero mass refers to electrons. The forth
line in the data text file labels the columns that follow in the file.
The columns include times, radiation measurements, spacecraft
location, instrument look direction, and some supplementary
information. Radiation measurements are provided both as best
calibrated and cleaned intensities as well as raw, uncorrected count
rates. Columns with channel names followed by a "j" include calibrated
differential intensities of the given channel. If the value is
negative, it should be ignored and particularly not included in
averages. For the difference between -1.000000E+38 and all other
negative values, see the User Guide. Columns ending with "f" provide
differential intensities based on a combination of various channels.
Columns ending with "i" include calibrated integral intensities.
Columns with plain channel names describe the raw uncorrected count
rate. Columns ending with "bg" are raw count rates measured behind the
calibration shield. Each following line will provide the same data but
for different times. More information can be found in the User Guide.
This includes the full set of channels covering the full energy and
species range of EPD. The time and pitch angle resolution is low.
Higher resolution is available for some channels that can be found in
the medium and high resolution files.the energy deposited in the one
solid state detector (Energy_keV column) and the time of flight
(TOF_ns) within the instrument are recorded.