HEASARC
Archive

SC_CMA_VIEW - EXOSAT CMA Sources

 HEASARC
Archive

Overview

This table view of CMA is deprecated. Please instead use CMASCREEN, which contains the same information.

Provenance

This table view was created by the HEASARC in 1995 or so. It was a subset of the original CMA database table created by the HEASARC in 1995 or earlier. It has been superseded by CMASCREEN in August 2020.

Parameters

Al_Count_Rate
Counting rate from the Al/P filter, if available from an observation of the same source made within one day. `AL count rate error` gives the error on the Al/P counting rate.

Al_Count_Rate_Error
Al/Par Count Rate Error

Background_Per_Sqpix
Background Level

BII
The galactic latitude of the source.

Bo_Count_Rate
Counting rate from the boron filter, if available (see the `AL count rate` description). `BO count rate error` gives the error on boron counting rate.

Bo_Count_Rate_Error
Boron Count Rate Error

BV_Color
B-V Color

Class
Source Classification. Type 'class' at the browse prompt for more info. Source not identified as the class filed set to 'uniden'.

Count_Rate
The `count rate` and `count rate error` are the average counting rate (counts per sec) over the observation and its associated one sigma uncertainty.

Count_Rate_Error
Error on Count Rate

Deadtime_Correction_Fact
Detector Deadtime Correction Factor

Dec
The Dec is the Declination of the detected source.

Detection_Significance
The probability of the detection being due to random chance. Note, this is not scaled for the independent number of search attempts in an image.

Diamond_Filter
Some observation were carried out with an OBC program that sets a 'diamond' filter. This filter electronically screened out the outer part of the field of view. The resulting image, which is shaped as a diamond, covers only a fraction of the 2 X 2 deg. If the diamond filter was in used than the DIAMOND_FILTER paramater is set to 1 otherwise its value is 0.

Error_Radius
The 90-percent confidence uncertainty in arcseconds for the LE1 telescope.

Expected_Variance_TA1
Expected Variance in TA1

Expected_Variance_TA2
Expected Variance in TA2

Exposure_Time
The `exposure` is the total on-source observation time in seconds. This includes all dead time effects, interruptions in coverage, etc.

File_Bglcurve
File Name of Background Light Curve

File_Image
The file_image parameter contains the file name of the associated image.

File_Lcurve
File name of the source lightcurve.

Filter
The filter numbers are 

   * 7 = 3000 (thin) lexan

   * 6 = al/p

   * 8 = boron

   * 2 = PPL

   * 3 = 4000 (thick) lexan

ID_Number
Source Order Number

Instrument
The instrument paramater records which of the two telescope+detector combination, LE1+CMA1 or LE2+CMA2, were used in the observation to detect the source. The values are L1, for the combination LE1+CMA1, and L2, for the combination LE2+CMA2.

IPC_Count_Rate
IPC Count Rate

IPC_Count_Rate_Error
IPC Count Rate Error

IRAS_Flux_1
12-micron IRAS Flux

IRAS_Flux_2
25-micron IRAS Flux

IRAS_Flux_3
60-micron IRAS Flux

IRAS_Flux_4
100-micron IRAS Flux

Last_Update
Date of Last Record Update

Lightcurve_Prefix
Rates Buffer Identifier (First Letter)

LII
The galactic longitude of the source.

ME_1_To_3_Count_Rate
ME Count Rate in 1-3keV Band

ME_1_To_3_Count_Rate_Err
ME Count Rate Error in 1-3keV Band

ME_3_To_6_Count_Rate
ME Count Rate in 3-6 keV Band

ME_3_To_6_Count_Rate_Err
ME Count Rate Error in 3-6 keV Band

ME_Count_Rate
Counting rate from the ME detector during this observation (warning: this may not cover exactly the same time interval), it also covers the central field of view and so will include all sources seen by the LE. `ME count rate error` gives the error on the count rate.

ME_Count_Rate_Error
ME Count Rate Error

Name
The name of the EXOSAT target/field. There are many serendipitous sources in the EXOSAT LE images, and in some cases the name given here will reflect the original target name and not the actual source name.

NH_21cm
This parameter contans the 21-cm NH through the galaxy H cm-2 from Starke et al.

Observed_Variance_TA1
Observed Variance in TA1

Observed_Variance_TA2
Observed Variance in TA2

Offset_Angle_Of_Detectio
Distance from xpix=15, ypix=15

Old_Deadtime
Dead Time Correction

Old_NH_21cm
NH (1019 cm-2) in the Galaxy

PI_Code
Principal Investigator Code

Point_Source_Flag
Point Source Flag

Processed_Date
Date of Buffer Creation

Proposal_Type
Proposal Type (HLX etc.)

Qflag_LE
This parameter contains the quality flag for the LE. This is a number between 1 and 5, where 5 is excellent and 1 means there may be a serious problem with the entry. A value of 3 means that the entry should be checked. For example, all boron filter entries have a qflag of 3, to warn of the problem with the PSF for soft sources observed with this filter.

Qflag_ME
ME Quality Flag

Quality_Check
Visual Quality of Detection

RA
The RA is the Right Ascension of the detected source.

Radio_5GHz_Flux
Radio Flux (mJy) at 5 GHz

Radio_Flag
Flag for Radio Emission

Redshift
Redshift or HD Number of Counterpart

Res_of_LC
This parameter contains the time resolution of the associated data product lightcurve in seconds. The time resolution was 2n seconds, where n was optimized such that the average number of counts per bin is 0.3.

ROSAT_ID
ROSAT ID (spare)

Sequence_Number
Sequence Number

Serendipity_Flag
Flag for Serendipitous Sources

Tape_No
Archive Tape # Where Files Are Stored

Time
The time of the observation refers to the start time. Times are accurate to the nearest second.

UB_Color
U-B Color

Vmag
V Magnitude

X_Pixels
For imaging instruments, the X pixels coordinate of the source in the detector is given by the parameter `X pixels`. The X value ranges between -1024 and 1023.

Y_Pixels
For imaging instruments, the Y pixels coordinate of the source in the detector is given by the parameter `Y pixels`. The Y value ranges between -1024 and 1023.

Contact Person

Questions regarding the SC_CMA_VIEW database table can be addressed to the HEASARC User Hotline.
Page Author: Browse Software Development Team
Last Modified: Friday, 14-Aug-2020 21:18:24 EDT