ASTROSAT CZTI

Data Quality Report

Orbit 04358

Creation date: 2024-06-27T14:40:50.414049
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_219T01_9000000540_04358cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04358cztM0_level2_quad_clean.evt
Size (bytes)574,764,48085,996,800
Size548.1 MB 82.0 MB
Events in quadrant A5,196,534525,029
Events in quadrant B3,983,140551,224
Events in quadrant C4,375,841529,487
Events in quadrant D3,395,211529,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198663
B0163262
C0175592
D0146982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A672869110.270511%
B67281542.288942%
C67283244.815696%
D67291352.006242%

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 7818 6728 449 449 5.74% 6.67%
B 7818 6728 3 3 0.04% 0.04%
C 7818 6728 209 209 2.67% 3.11%
D 7819 6729 15 15 0.19% 0.22%

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 0 13 1382548 8299.9 808 790 166.5
A 13 251 603128 3618.11 808 790 166.5
A 15 234 50969 301.41 808 790 166.5
B 0 187 442988 2749.06 833 815 160.8
B 15 204 158485 980.26 833 815 160.8
B 14 167 61485 377.2 833 815 160.8
C 9 247 1173242 6320.17 793 795 185.5
C 9 16 53804 285.75 793 795 185.5
C 12 4 25062 130.81 793 795 185.5
D 2 136 73062 369.63 809 785 195.5
D 13 53 61389 309.93 809 785 195.5
D 8 112 42649 214.09 809 785 195.5

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