ASTROSAT CZTI

Data Quality Report

Orbit 24143

Creation date: 2024-06-27T19:02:36.708257
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/AS1A07_069T01_9000003570_24143cztM0_level2.evt modeM0/AS1A07_069T01_9000003570_24143cztM0_level2_quad_clean.evt
Size (bytes)615,329,28064,575,360
Size586.8 MB 61.6 MB
Events in quadrant A3,514,424408,680
Events in quadrant B3,609,166415,827
Events in quadrant C3,500,408383,344
Events in quadrant D7,585,787308,285

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141221
B0145431
C0141182
D0267001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6292340.540369%
B6292610.969485%
C6291921.462407%
D6291166226.418693%

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 7662 6293 0 0 0.00% 0.00%
B 7662 6293 0 0 0.00% 0.00%
C 7661 6292 0 0 0.00% 0.00%
D 7661 6292 1523 1523 19.88% 24.21%

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 13 254 10515 53.5 912 897 179.8
A 0 226 7828 38.55 912 897 179.8
A 3 137 7214 35.14 912 897 179.8
B 15 32 24632 140.21 912 897 169.3
B 12 111 19367 109.11 912 897 169.3
B 11 111 16595 92.73 912 897 169.3
C 14 238 138986 711.11 849 858 194.2
C 7 247 21104 104.23 849 858 194.2
C 0 239 15775 76.8 849 858 194.2
D 7 238 4436619 24167.86 767 747 183.5
D 1 52 137377 744.4 767 747 183.5
D 8 195 112472 608.71 767 747 183.5

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