ASTROSAT CZTI

Data Quality Report

Orbit 47085

Creation date: 2024-06-27T23:31:32.833007
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C09_003T01_9000006298_47085cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47085cztM0_level2_quad_clean.evt
Size (bytes)1,670,711,040342,518,400
Size1.6 GB 326.7 MB
Events in quadrant A21,094,6032,356,648
Events in quadrant B13,122,0442,408,208
Events in quadrant C10,159,9302,268,174
Events in quadrant D15,846,6301,890,469

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0470
B0470
C0470
D0470

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0781274
B05360312
C0455064
D0619794

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04280
B04280
C04280
D04280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A210186693.182986%
B210144732.250880%
C210191790.851610%
D2101918528.811076%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 25643 21022 111 111 0.43% 0.53%
B 25643 21018 131 131 0.51% 0.62%
C 25644 21023 84 84 0.33% 0.40%
D 25644 21023 1407 1407 5.49% 6.69%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 11793188 24451.03 2360 2311 482.2
A 13 248 56191 111.73 2360 2311 482.2
A 13 254 39759 77.66 2360 2311 482.2
B 5 173 1379994 3083.86 2339 2267 446.8
B 3 112 1259187 2813.45 2339 2267 446.8
B 5 172 475099 1058.37 2339 2267 446.8
C 14 220 594568 1128.34 2275 2286 524.9
C 14 254 440437 834.71 2275 2286 524.9
C 12 2 77736 143.74 2275 2286 524.9
D 1 52 5440898 10013.77 2195 2125 543.1
D 1 47 638386 1171.47 2195 2125 543.1
D 13 249 313612 573.5 2195 2125 543.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter