ASTROSAT CZTI

Data Quality Report

Orbit 21392

Creation date: 2024-06-27T18:27:15.876433
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/AS1C04_010T01_9000003158_21392cztM0_level2.evt modeM0/AS1C04_010T01_9000003158_21392cztM0_level2_quad_clean.evt
Size (bytes)444,481,92020,039,040
Size423.9 MB 19.1 MB
Events in quadrant A3,053,96452,559
Events in quadrant B3,005,60056,867
Events in quadrant C3,890,21453,069
Events in quadrant D3,132,90053,429

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013117
B013016
C013016
D013016

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143342094
B0140952014
C0169121901
D0144831949

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211
B0222
C0221
D0233

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5549821.477744%
B5560781.402878%
C55722694.827710%
D5582851.522752%

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 7582 5672 0 0 0.00% 0.00%
B 7587 5683 1 1 0.01% 0.02%
C 7588 5701 74 74 0.98% 1.30%
D 7577 5714 16 16 0.21% 0.28%

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 5 168 115702 756.81 756 741 151.9
A 11 47 11795 72.77 756 741 151.9
A 13 254 8713 52.48 756 741 151.9
B 0 230 22828 157.6 746 730 140.2
B 0 190 17637 120.58 746 730 140.2
B 12 111 16144 109.93 746 730 140.2
C 3 233 1009113 6155.76 709 714 163.8
C 14 238 112845 684.5 709 714 163.8
C 13 61 5008 26.21 709 714 163.8
D 12 235 102084 567.32 737 717 178.7
D 13 172 77461 429.52 737 717 178.7
D 7 38 54219 299.44 737 717 178.7

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