ASTROSAT CZTI

Data Quality Report

Orbit 44565

Creation date: 2024-06-27T23:04:01.564415
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/AS1A13_003T01_9000006002_44565cztM0_level2.fits modeM0/AS1A13_003T01_9000006002_44565cztM0_level2_quad_clean.evt
Size (bytes)524,733,120119,476,800
Size500.4 MB 113.9 MB
Events in quadrant A5,383,202790,604
Events in quadrant B3,645,107815,154
Events in quadrant C3,988,261788,075
Events in quadrant D5,837,062711,526

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227030
B0160240
C0168191
D0225710

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73541952.651618%
B73551311.781101%
C7354460.625510%
D73541772.406853%

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 7354 7354 85 85 1.16% 1.16%
B 7355 7355 52 52 0.71% 0.71%
C 7354 7354 23 23 0.31% 0.31%
D 7354 7354 169 169 2.30% 2.30%

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 1814129 10400.15 838 818 174.4
A 13 248 229913 1313.96 838 818 174.4
A 15 223 73771 418.42 838 818 174.4
B 5 172 241725 1469.71 830 804 163.9
B 0 186 45543 272.93 830 804 163.9
B 0 168 30193 179.28 830 804 163.9
C 14 254 395910 2038.16 818 826 193.8
C 15 208 190810 980.09 818 826 193.8
C 3 233 187662 963.85 818 826 193.8
D 13 174 1282268 6279.13 815 791 204.1
D 1 52 646255 3162.72 815 791 204.1
D 2 249 447384 2188.27 815 791 204.1

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