ASTROSAT CZTI

Data Quality Report

Orbit 54707

Creation date: 2025-11-10T15:25:20.011484
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/AS1A14_103T01_9000006524_54707cztM0_level2.fits modeM0/AS1A14_103T01_9000006524_54707cztM0_level2_quad_clean.evt
Size (bytes)518,060,16088,660,800
Size494.1 MB 84.6 MB
Events in quadrant A3,102,727614,172
Events in quadrant B5,809,996578,078
Events in quadrant C3,375,426582,149
Events in quadrant D6,386,474459,869

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138081
B0218501
C0147731
D0237071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6459711.099241%
B646097915.154799%
C6460791.222910%
D6460121018.730650%

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 7439 6460 13 13 0.17% 0.20%
B 7440 6460 791 791 10.63% 12.24%
C 7440 6461 36 36 0.48% 0.56%
D 7440 6460 963 963 12.94% 14.91%

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 3 14 95080 557.23 679 662 169.4
A 4 3 86317 505.52 679 662 169.4
A 11 3 75475 441.53 679 662 169.4
B 2 249 2740348 20221.58 632 609 135.5
B 7 0 142645 1048.35 632 609 135.5
B 0 213 82217 602.34 632 609 135.5
C 3 242 306699 1686.4 655 649 181.5
C 14 254 104719 573.45 655 649 181.5
C 13 3 96277 526.93 655 649 181.5
D 15 94 2462281 14088.26 595 565 174.7
D 11 129 702737 4018.49 595 565 174.7
D 3 12 429788 2456.42 595 565 174.7

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