Project VS-COMPAS | Variable Stars Common Observation Mission in Particular Areas of the Sky

Project VS-COMPAS
Variable Stars Common Observation Mission in Particular Areas of the Sky

PDM Light Curve Explorer

Load Object CDS Light Curve Search Period Filters Analysis Settings How-To

Explore Light Curve Data

CDS

VizieR

Aladin

Data Source Disclaimer

The data is retrieved from a publicly available service, based on coordinates, and is strongly suggested for review (used primarily to help in research)

Centre de Donnees astronomiques de Strasbourg

Designations

UCAC3 Position

NOMAD Colors

Try Period

Epoch: Period:

Display Epoch on the Plot

Original Observation Points

( time-based )

Light Curve Evolution Research

Apply color overriding to light curve segments.

Hide

-colored points on the plot.

What is it? The PDM Light Curve Explorer is a tool for period determination in a set of photometric data. It also automatically aggregates photometry from publicly available surveys to make the discovery process much faster and easier.
Learn more about How-To use this tool

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Lookup Object By Coordinates

RA/DEC:

I don't have coordinates Click here to find out more data loading methods

Find Object By ID

Survey: ID:

Quick Photometry Upload

or Use Advanced Photometry Uploading Tool

Content format? "JD Mag Err" or "JD Mag" each line.
Starting # sign means a comment. More Details, please.

Results

Distance	Object

Need Help? Learn more about How-To use this tool

Search Parameters

From: To:

Results

Period	Theta	Frequency, c/day

Light Curve Fitting

Enable Polynomial Fitting (experimental)

Polynomial Degree:

Extremums:
Fit Maximas:
Fit Minimas:

Enable Captions:
Max.:
Min.:

No fitting curve display

Curve Alignment: at

Automatically calculate HJD Epoch
for the aligned light curve

Settings

This section is not complete yet. It will be soon containing settings regulating tool's behavior (available on a per-user basis).

Help / Support Should you have any questions on how to use this tool, do not hesitate to contact us.

Photometry Sources

NSVS // Northern Sky Variability Survey

ASAS // All Sky Automated Survey

CRTS // Catalina Sky Survey

How-To / PDM Tutorial This section is not complete yet. It will be soon containing settings regulating tool's behavior (available on a per-user basis).

Help / Support Should you have any questions on how to use this tool, do not hesitate to contact us.

Photometric System

Plot the following system:

Magnitude Filter

Max mag. : Min mag. :

Curves / Photometry V-band Matching

NSVS Mag Offset:
vs. ASAS-3 (V-band) vs.
CRTS Mag Offset:

Observations Filter

Display error marks for error value >=
Exclude observations with error >=

Available Photometric Data

NSVS

CRTS

ASAS

Uploaded

Loading NSVS data...

Loading CRTS data...

Loading ASAS data...

No uploaded photometric files yet available

Use Merged Aliases Exclude observations with error >= Best-fit time frame / intersection merging

Use Merged Photometry Exclude observations with error >= Best-fit time frame / intersection merging

Add / Upload File Title:

File :

Helio Correction

Apply automatic Helio Correction | JD Offset: MJD (source)

Use RA/DEC from file / or Provide decimal RA: DEC:

Contact us

Authors: Ivan Adamin, Andrey Prokopovich