ASTROSAT CZTI

Data Quality Report

Orbit 28563

Creation date: 2024-06-27T19:53:23.622314
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/AS1A10_102T07_9000004102_28563cztM0_level2.evt modeM0/AS1A10_102T07_9000004102_28563cztM0_level2_quad_clean.evt
Size (bytes)530,688,96090,521,280
Size506.1 MB 86.3 MB
Events in quadrant A3,397,358592,272
Events in quadrant B3,288,712594,866
Events in quadrant C3,309,353560,378
Events in quadrant D5,629,816534,257

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142972
B0139162
C0139732
D0210992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6587711.077881%
B6587831.260058%
C65871031.563686%
D65874647.044178%

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 7277 6588 4 4 0.05% 0.06%
B 7277 6587 0 0 0.00% 0.00%
C 7277 6588 4 4 0.05% 0.06%
D 7277 6587 753 753 10.35% 11.43%

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 15 174 191287 1142.95 827 811 166.7
A 8 192 13295 74.91 827 811 166.7
A 13 254 11356 63.28 827 811 166.7
B 4 171 34509 213.49 818 797 157.9
B 12 111 19816 120.44 818 797 157.9
B 0 230 18723 113.52 818 797 157.9
C 14 238 126483 683.26 782 787 184.0
C 7 247 122116 659.52 782 787 184.0
C 3 233 11471 58.08 782 787 184.0
D 8 195 2013053 10791.36 781 761 186.5
D 1 52 480333 2571.81 781 761 186.5
D 2 250 63146 334.55 781 761 186.5

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