ASTROSAT CZTI

Data Quality Report

Orbit 30111

Creation date: 2024-06-27T20:11:02.011794
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_019T01_9000004332_30111cztM0_level2.evt modeM0/AS1C05_019T01_9000004332_30111cztM0_level2_quad_clean.evt
Size (bytes)533,139,840131,644,800
Size508.4 MB 125.5 MB
Events in quadrant A3,194,575902,000
Events in quadrant B5,169,057901,715
Events in quadrant C3,588,319846,760
Events in quadrant D3,724,640854,473

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141062
B0208321
C0152211
D0152281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69221001.444669%
B69231642.368915%
C69234065.864510%
D6923891.285570%

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 7527 6923 0 0 0.00% 0.00%
B 7528 6924 0 0 0.00% 0.00%
C 7528 6924 32 32 0.43% 0.46%
D 7528 6924 11 11 0.15% 0.16%

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 13 254 12811 73.07 824 807 164.3
A 8 192 9585 53.43 824 807 164.3
A 3 137 8143 44.65 824 807 164.3
B 6 159 1916958 12295.77 812 791 155.8
B 0 190 53803 340.17 812 791 155.8
B 12 111 19067 117.27 812 791 155.8
C 3 233 313741 1774.19 764 767 176.4
C 14 238 188671 1065.19 764 767 176.4
C 14 254 86274 484.72 764 767 176.4
D 8 195 299458 1603.09 789 770 186.3
D 1 52 142462 760.48 789 770 186.3
D 12 227 131573 702.03 789 770 186.3

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