ASTROSAT CZTI

Data Quality Report

Orbit 05328

Creation date: 2024-06-27T14:53:57.133801
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/AS1G05_240T01_9000000674_05328cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05328cztM0_level2_quad_clean.evt
Size (bytes)495,820,80081,656,640
Size472.9 MB 77.9 MB
Events in quadrant A3,168,088502,801
Events in quadrant B3,297,745519,185
Events in quadrant C3,800,778496,532
Events in quadrant D4,279,399472,226

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143163
B0144642
C0161532
D0176602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6919380.549212%
B6919470.679289%
C6919530.766007%
D69194776.894060%

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 9304 6921 0 0 0.00% 0.00%
B 9304 6921 1 1 0.01% 0.01%
C 9304 6921 4 4 0.04% 0.06%
D 9304 6921 387 387 4.16% 5.59%

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 13 251 40079 238.27 809 793 164.9
A 0 226 7806 42.53 809 793 164.9
A 12 194 7712 41.96 809 793 164.9
B 10 16 30617 190.27 823 801 156.7
B 4 80 29518 183.26 823 801 156.7
B 4 48 20476 125.56 823 801 156.7
C 1 16 670687 3613.31 797 799 185.4
C 14 67 8116 39.47 797 799 185.4
C 12 4 7863 38.1 797 799 185.4
D 2 136 1028715 5536.8 763 741 185.7
D 8 195 111350 595.75 763 741 185.7
D 2 234 58566 311.45 763 741 185.7

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