Product Summary

Attributes

Image Products >> Product Log >> Attributes

Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	16-Nov-2004
Product Creation Time	00:03:52
User	eisdata
Session	71094
Process	5000010
Product Type	stack
Survey	XMM
Telescope	MPI-2.2
Instrument	WFI
Region	XMM-11
Field	Sgr_A
Passband	B
Total Exposure Time (seconds)	1800

General Properties

Right Ascension (decimal degrees)	266.4132
Declination (decimal degrees)	-29.0015
Galactic Longitude, l	359.9494
Galactic Latitude, b	-0.0398
Total Exposure Time (seconds)	1800
Number of Contributing Frames	3
First Contributing Frame MJD	52729.3416
Lsat Contributing Frame MJD	52729.3583
First Contributing Frame Civil Date	2003-03-31
Last Contributing Frame Civil Date	2003-03-31
Interval between First/Last Contributing Frames (days)	0.02
Number of Photometric Contributing Frames	3
Number of Rejected Frames	0
Number of Stacked Frames	3
Effective Gain	4303.9
Effective Non-linearity	N/A
Effective Saturation	N/A
Area of maximum overlap in stacked image (arcmin2)	1040.9
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	28.04	27.29	26.85	26.53	26.29
2.0	27.08	26.33	25.89	25.58	25.34
3.0	26.22	25.46	25.02	24.71	24.47
4.0	25.74	24.98	24.54	24.23	23.99
5.0	25.51	24.75	24.31	24.0	23.76
6.0	25.11	24.36	23.92	23.61	23.37

PSF

Measured Seeing (arcsec)	1.088
Measured Seeing (pixels)	4.571
PSF Distortion along X-axis (E-W), e1	-0.004
PSF Distortion along Y-axis (N-S), e2	-0.001
PSF Distortion rms	0.058

Pixel Distribution

Mean Count (ADU)	0.197
Standard Deviation of Count (ADU)	4.765
Mean Sigma-Clipped Background Count (ADU)	-0.002
Standard Deviation of Sigma-Clipped Background Count (ADU)	0.024

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Stack Blocks

Image Products >> Product Log >> Stack Blocks

Product Identification

Real User	Lisbeth Fogh Olsen
Product Creation Date	16-Nov-2004
Product Creation Time	00:03:52
User	eisdata
Session	71094
Process	5000010
Product Type	stack
Survey	XMM
Telescope	MPI-2.2
Instrument	WFI
Region	XMM-11
Field	Sgr_A
Passband	B
Total Exposure Time (seconds)	1800

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	1.06
Mean Seeing of Contributing Frames (arcsec)	1.107
Mean of rms PSF Distortions of Contributing Frames	0.057
Mean Sky Brightness of Contributing Frames (magnitudes/arcsec2)	21.59

Frames in SB: Observations

#	R.A.	Dec.	Passband	MJD	Civil Date	Airmass	Total Exposure Time
1	266.41645	-29.00746	B	52729.3416285	2003-03-31	1.07776452615	359.9163
2	266.3948	-29.00157	B	52729.3470919	2003-03-31	1.05940109385	719.8342
3	266.42834	-28.99558	B	52729.3583047	2003-03-31	1.03942380832	719.8333

Frames in SB: Properties

#	Instrument	Filter	Pixel Scale	NDIT	Astrometric System	Photometric Flag	Visual Flag	Automatic Flag
1	WFI	#878	0.238	1	GSC2.2	PHOTOM	A
2	WFI	#878	0.238	2	GSC2.2	PHOTOM	A
3	WFI	#878	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	1.14	0.062	21.38	N/A
2	1.17	0.053	21.39	N/A
3	1.01	0.056	21.41	N/A

Frames in SB: Photometry (Vega)

#	MJD.	Civil Date	Solution Type	Zeropoint	Zp error	Extinction	Chi2
1	52728.667	2003-03-30	N/A	24.71	0.003	0.184	0.0392
2	52728.667	2003-03-30	N/A	24.71	0.003	0.184	0.0392
3	52728.667	2003-03-30	N/A	24.71	0.003	0.184	0.0392

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	2899.0	3895.0	266.5	-29.0
2	TAN	DEFAULT	GSC2.2	2752.0	4070.0	266.5	-29.0
3	TAN	DEFAULT	GSC2.2	3190.0	3981.0	266.5	-29.0

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Calibration

Comparison

QC Parameters