Product Summary

Attributes

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Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	02-Nov-2004
Product Creation Time	21:57:26
User	eisdata
Session	70206
Process	5000010
Product Type	stack
Survey	XMM
Telescope	MPI-2.2
Instrument	WFI
Region	XMM-11
Field	Sgr_A
Passband	R
Total Exposure Time (seconds)	3500

General Properties

Right Ascension (decimal degrees)	266.4137
Declination (decimal degrees)	-29.0013
Galactic Longitude, l	359.9498
Galactic Latitude, b	-0.0401
Total Exposure Time (seconds)	3500
Number of Contributing Frames	3
First Contributing Frame MJD	52730.3632
Lsat Contributing Frame MJD	52730.3918
First Contributing Frame Civil Date	2003-04-01
Last Contributing Frame Civil Date	2003-04-01
Interval between First/Last Contributing Frames (days)	0.03
Number of Photometric Contributing Frames	3
Number of Rejected Frames	0
Number of Stacked Frames	3
Effective Gain	7512.7
Effective Non-linearity	N/A
Effective Saturation	N/A
Area of maximum overlap in stacked image (arcmin2)	1040.6
Fraction of instrument FOV of area of stacked image with maximum overlap	0.9

Aperture Limiting Magnitudes

Aperture (arcsec)	1 sigma	2 sigma	3 sigma	4 sigma	5 sigma

1.0	26.27	25.52	25.08	24.77	24.52
2.0	24.91	24.16	23.72	23.41	23.16
3.0	24.09	23.34	22.9	22.59	22.34
4.0	23.47	22.72	22.28	21.97	21.73
5.0	22.64	21.88	21.44	21.13	20.89
6.0	22.38	21.63	21.19	20.88	20.63

PSF

Measured Seeing (arcsec)	0.611
Measured Seeing (pixels)	2.566
PSF Distortion along X-axis (E-W), e1	0.008
PSF Distortion along Y-axis (N-S), e2	0.0
PSF Distortion rms	0.09

Pixel Distribution

Mean Count (ADU)	0.464
Standard Deviation of Count (ADU)	5.682
Mean Sigma-Clipped Background Count (ADU)	-0.005
Standard Deviation of Sigma-Clipped Background Count (ADU)	0.04

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Stack Blocks

Image Products >> Product Log >> Stack Blocks

Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	02-Nov-2004
Product Creation Time	21:57:26
User	eisdata
Session	70206
Process	5000010
Product Type	stack
Survey	XMM
Telescope	MPI-2.2
Instrument	WFI
Region	XMM-11
Field	Sgr_A
Passband	R
Total Exposure Time (seconds)	3500

Stack Blocks (SB)

Number of Original Frames Input	3
Number of Photometric Frames	3
Number of Rejected Frames	0
Number of Stacked Frames	3
Mean Airmass of Contributing Frames	1.01
Mean Seeing of Contributing Frames (arcsec)	0.62
Mean of rms PSF Distortions of Contributing Frames	0.118
Mean Sky Brightness of Contributing Frames (magnitudes/arcsec2)	20.01

Frames in SB: Observations

#	R.A.	Dec.	Passband	MJD	Civil Date	Airmass	Total Exposure Time
1	266.41655	-29.00724	R	52730.3631968	2003-04-01	1.0290615478	699.9177
2	266.39525	-29.00125	R	52730.3727386	2003-04-01	1.01285444421	1399.8352
3	266.42922	-28.99554	R	52730.3917942	2003-04-01	1.00153438826	1399.835

Frames in SB: Properties

#	Instrument	Filter	Pixel Scale	NDIT	Astrometric System	Photometric Flag	Visual Flag	Automatic Flag
1	WFI	#844	0.238	1	GSC2.2	PHOTOM	A
2	WFI	#844	0.238	2	GSC2.2	PHOTOM	A
3	WFI	#844	0.238	2	GSC2.2	PHOTOM	A

Frames in SB: Attributes

#	Seeing (arcsec)	PSF Distortion (rms)	Sky Brightness (magnitudes/arcsec2)	Limiting magnitude (5 sigma - 2 arcsec)
1	0.64	0.123	19.92	N/A
2	0.63	0.114	19.94	N/A
3	0.59	0.117	19.95	N/A

Frames in SB: Photometry (Vega)

#	MJD.	Civil Date	Solution Type	Zeropoint	Zp error	Extinction	Chi2
1	52729.667	2003-03-31	N/A	24.37	0.004	0.076	0.0138
2	52729.667	2003-03-31	N/A	24.37	0.004	0.076	0.0138
3	52729.667	2003-03-31	N/A	24.37	0.004	0.076	0.0138

Frames in SB: Astrometry

#	Projection	Orientation	Astrometric Reference Catalogue	Reference Pixel: X	Reference Pixel: Y	Reference Pointing: Right Ascension	Reference Pointing: Declination
1	TAN	DEFAULT	GSC2.2	2892.0	3886.0	266.5	-29.0
2	TAN	DEFAULT	GSC2.2	2745.0	4061.0	266.5	-29.0
3	TAN	DEFAULT	GSC2.2	3183.0	3973.0	266.5	-29.0

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