ASTROSAT CZTI

Data Quality Report

Orbit 09728

Creation date: 2024-06-27T15:49:55.602862
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/AS1A02_029T01_9000001386_09728cztM0_level2.evt modeM0/AS1A02_029T01_9000001386_09728cztM0_level2_quad_clean.evt
Size (bytes)436,999,68066,913,920
Size416.8 MB 63.8 MB
Events in quadrant A3,713,552395,927
Events in quadrant B3,085,833408,411
Events in quadrant C2,923,639408,589
Events in quadrant D3,102,894393,641

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162741135
B013614889
C013309748
D014015901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0201
C0201
D0211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01306
B013010
C01306
D013010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59591352.265481%
B60001181.966667%
C60521111.834104%
D60141312.178251%

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 7533 6254 1 1 0.01% 0.02%
B 7533 6265 2 2 0.03% 0.03%
C 7533 6283 0 0 0.00% 0.00%
D 7533 6277 17 17 0.23% 0.27%

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 1 162 353958 2305.86 749 734 153.2
A 1 178 173996 1131.06 749 734 153.2
A 1 161 160743 1044.54 749 734 153.2
B 4 173 50269 339.45 762 745 145.9
B 0 219 19989 131.9 762 745 145.9
B 0 187 16420 107.44 762 745 145.9
C 13 61 5494 27.31 749 752 173.6
C 12 4 2026 7.34 749 752 173.6
C 3 202 1840 6.27 749 752 173.6
D 1 52 126616 696.44 736 717 180.8
D 2 152 106529 585.32 736 717 180.8
D 12 233 44450 241.92 736 717 180.8

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