ASTROSAT CZTI

Data Quality Report

Orbit 50293

Creation date: 2025-01-14T23:00:22.965056
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_003T01_9000006442_50293cztM0_level2.fits modeM0/AS1C09_003T01_9000006442_50293cztM0_level2_quad_clean.evt
Size (bytes)204,877,44010,391,040
Size195.4 MB 9.9 MB
Events in quadrant A1,774,46875,421
Events in quadrant B762,214111,289
Events in quadrant C2,626,9581,991
Events in quadrant D2,330,98240,998

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060590
B030040
C085500
D077020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112037133.125000%
B1119393.485255%
C1119109697.944593%
D111969462.019660%

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 1120 1120 373 373 33.30% 33.30%
B 1119 1119 34 34 3.04% 3.04%
C 1119 1119 896 896 80.07% 80.07%
D 1119 1119 698 698 62.38% 62.38%

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 6 250 1212836 45253.66 100 97 26.8
A 12 250 64562 2405.53 100 97 26.8
A 3 231 27191 1011.02 100 97 26.8
B 4 206 213153 8266.97 113 109 25.8
B 0 172 53212 2060.61 113 109 25.8
B 0 213 11323 435.15 113 109 25.8
C 15 197 1817772 166634.24 33 33 10.9
C 4 111 622632 57074.37 33 33 10.9
C 15 127 15867 1451.52 33 33 10.9
D 7 61 1226300 48108.07 88 85 25.5
D 2 37 242525 9511.64 88 85 25.5
D 15 108 127254 4989.22 88 85 25.5

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