ASTROSAT CZTI

Data Quality Report

Orbit 22354

Creation date: 2024-06-27T18:40:30.334698
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/AS1C05_004T01_9000003308_22354cztM0_level2.evt modeM0/AS1C05_004T01_9000003308_22354cztM0_level2_quad_clean.evt
Size (bytes)521,449,920109,512,000
Size497.3 MB 104.4 MB
Events in quadrant A3,422,907713,404
Events in quadrant B4,114,258719,657
Events in quadrant C3,437,351694,668
Events in quadrant D4,313,235672,025

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152171
B0170091
C0151471
D0177421

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74271381.858085%
B74282563.446419%
C74281181.588584%
D74281982.665590%

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 7587 7428 0 0 0.00% 0.00%
B 7588 7429 105 105 1.38% 1.41%
C 7588 7429 0 0 0.00% 0.00%
D 7588 7429 97 97 1.28% 1.31%

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 1 19378 103.56 881 861 178.8
A 4 2 10363 53.14 881 861 178.8
A 13 254 8713 43.91 881 861 178.8
B 3 64 558196 3306.0 876 850 168.6
B 0 197 41394 240.49 876 850 168.6
B 0 190 36858 213.59 876 850 168.6
C 14 238 133286 670.22 844 850 197.6
C 13 61 6024 26.18 844 850 197.6
C 3 9 4602 18.99 844 850 197.6
D 1 52 566420 2737.38 849 823 206.6
D 12 227 441719 2133.85 849 823 206.6
D 13 104 51489 245.21 849 823 206.6

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