Product Summary

Attributes

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Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	02-Nov-2004
Product Creation Time	21:07:30
User	eisdata
Session	70208
Process	5000010
Product Type	stack
Survey	XMM
Telescope	MPI-2.2
Instrument	WFI
Region	XMM-11
Field	Sgr_A
Passband	V
Total Exposure Time (seconds)	4399

General Properties

Right Ascension (decimal degrees)	266.4148
Declination (decimal degrees)	-29.0112
Galactic Longitude, l	359.9419
Galactic Latitude, b	-0.0461
Total Exposure Time (seconds)	4399
Number of Contributing Frames	3
First Contributing Frame MJD	52725.3247
Lsat Contributing Frame MJD	52729.3851
First Contributing Frame Civil Date	2003-03-27
Last Contributing Frame Civil Date	2003-03-31
Interval between First/Last Contributing Frames (days)	4.06
Number of Photometric Contributing Frames	3
Number of Rejected Frames	0
Number of Stacked Frames	3
Effective Gain	11041.3
Effective Non-linearity	N/A
Effective Saturation	N/A
Area of maximum overlap in stacked image (arcmin2)	1079.9
Fraction of instrument FOV of area of stacked image with maximum overlap	1.0

Aperture Limiting Magnitudes

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

1.0	27.48	26.73	26.29	25.97	25.73
2.0	26.37	25.61	25.17	24.86	24.62
3.0	25.95	25.19	24.75	24.44	24.2
4.0	25.46	24.71	24.27	23.96	23.72
5.0	25.07	24.32	23.88	23.56	23.32
6.0	24.7	23.95	23.51	23.2	22.96

PSF

Measured Seeing (arcsec)	0.768
Measured Seeing (pixels)	3.226
PSF Distortion along X-axis (E-W), e1	-0.004
PSF Distortion along Y-axis (N-S), e2	-0.002
PSF Distortion rms	0.069

Pixel Distribution

Mean Count (ADU)	0.222
Standard Deviation of Count (ADU)	4.83
Mean Sigma-Clipped Background Count (ADU)	-0.003
Standard Deviation of Sigma-Clipped Background Count (ADU)	0.023

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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	21:07:30
User	eisdata
Session	70208
Process	5000010
Product Type	stack
Survey	XMM
Telescope	MPI-2.2
Instrument	WFI
Region	XMM-11
Field	Sgr_A
Passband	V
Total Exposure Time (seconds)	4399

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	1.05
Mean Seeing of Contributing Frames (arcsec)	0.76
Mean of rms PSF Distortions of Contributing Frames	0.06
Mean Sky Brightness of Contributing Frames (magnitudes/arcsec2)	20.75

Frames in SB: Observations

#	R.A.	Dec.	Passband	MJD	Civil Date	Airmass	Total Exposure Time
1	266.41629	-29.00721	V	52725.3246813	2003-03-27	1.11553419318	2199.5882
2	266.41945	-29.00737	V	52729.3722199	2003-03-31	1.01913545831	879.8352
3	266.40879	-29.019	V	52729.3850502	2003-03-31	1.00560720608	1319.7526

Frames in SB: Properties

#	Instrument	Filter	Pixel Scale	NDIT	Astrometric System	Photometric Flag	Visual Flag	Automatic Flag
1	WFI	#843	0.238	5	GSC2.2	PHOTOM	A
2	WFI	#843	0.238	2	GSC2.2	PHOTOM	A
3	WFI	#843	0.238	3	GSC2.2	PHOTOM	A

Frames in SB: Attributes

#	Seeing (arcsec)	PSF Distortion (rms)	Sky Brightness (magnitudes/arcsec2)	Limiting magnitude (5 sigma - 2 arcsec)
1	0.69	0.061	20.31	N/A
2	0.79	0.061	20.62	N/A
3	0.8	0.057	20.64	N/A

Frames in SB: Photometry (Vega)

#	MJD.	Civil Date	Solution Type	Zeropoint	Zp error	Extinction	Chi2
1	52724.667	2003-03-26	N/A	24.36	0.011	0.326	0.0513
2	52728.667	2003-03-30	N/A	24.1	0.002	0.114	0.0192
3	52728.667	2003-03-30	N/A	24.1	0.002	0.114	0.0192

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	3193.0	4074.0	266.5	-29.0
2	TAN	DEFAULT	GSC2.2	2923.0	3897.0	266.5	-29.0
3	TAN	DEFAULT	GSC2.2	3215.0	4072.0	266.5	-29.0

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