ASTROSAT CZTI

Data Quality Report

Orbit 53035

Creation date: 2025-07-18T15:14:02.157344
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_011T07_9000006488_53035cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53035cztM0_level2_quad_clean.evt
Size (bytes)762,428,16077,022,720
Size727.1 MB 73.5 MB
Events in quadrant A7,259,826511,301
Events in quadrant B3,014,308625,086
Events in quadrant C7,410,793423,148
Events in quadrant D10,061,877342,747

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258803
B0134601
C0263271
D0342221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6151117519.102585%
B61511552.519915%
C6152168227.340702%
D6152238238.719116%

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 7301 6152 1094 1094 14.98% 17.78%
B 7301 6152 70 70 0.96% 1.14%
C 7302 6153 1628 1628 22.30% 26.46%
D 7302 6152 2442 2442 33.44% 39.69%

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 9 191 3326955 22361.73 595 580 148.8
A 7 206 1229014 8258.21 595 580 148.8
A 0 8 121578 813.42 595 580 148.8
B 10 44 215813 1636.64 623 602 131.5
B 0 213 54408 409.18 623 602 131.5
B 10 247 53617 403.17 623 602 131.5
C 1 241 3478977 23502.54 535 529 148.0
C 15 224 1123500 7587.49 535 529 148.0
C 7 80 168206 1132.93 535 529 148.0
D 8 176 2157269 15248.79 487 464 141.4
D 2 172 2083773 14729.17 487 464 141.4
D 2 153 1261233 8913.74 487 464 141.4

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