ASTROSAT CZTI

Data Quality Report

Orbit 12243

Creation date: 2024-06-27T16:24:20.398293
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/AS1C03_014T03_9000001808_12243cztM0_level2.evt modeM0/AS1C03_014T03_9000001808_12243cztM0_level2_quad_clean.evt
Size (bytes)485,262,720132,310,080
Size462.8 MB 126.2 MB
Events in quadrant A3,736,368896,858
Events in quadrant B3,660,187911,085
Events in quadrant C3,353,407901,498
Events in quadrant D3,515,178854,934

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153073
B0149252
C0142582
D0145912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63441231.938840%
B63441712.695460%
C63441071.686633%
D63441712.695460%

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 7550 6346 5 5 0.07% 0.08%
B 7550 6346 52 52 0.69% 0.82%
C 7550 6346 21 21 0.28% 0.33%
D 7550 6346 39 39 0.52% 0.61%

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 13 251 238079 1476.48 805 791 160.7
A 1 162 138266 855.41 805 791 160.7
A 1 178 76394 470.42 805 791 160.7
B 4 239 261674 1762.4 804 787 148.0
B 11 51 103263 692.27 804 787 148.0
B 0 85 47422 315.04 804 787 148.0
C 15 208 246895 1374.64 789 795 179.0
C 14 234 16328 86.76 789 795 179.0
C 4 175 14203 74.89 789 795 179.0
D 1 52 224458 1208.85 781 757 185.1
D 10 199 119957 644.14 781 757 185.1
D 13 104 43475 230.84 781 757 185.1

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