ASTROSAT CZTI

Data Quality Report

Orbit 19067

Creation date: 2024-06-27T17:58:42.367619
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/AS1A05_046T01_9000002834_19067cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19067cztM0_level2_quad_clean.evt
Size (bytes)514,088,64078,246,720
Size490.3 MB 74.6 MB
Events in quadrant A2,929,526502,933
Events in quadrant B3,409,368511,462
Events in quadrant C2,994,335499,547
Events in quadrant D5,820,089427,531

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013210
B01326
C01324
D01328

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013355603
B014576596
C013371584
D0247933400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61622113.424213%
B61713585.801329%
C61692203.566218%
D597778213.083487%

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 6543 6279 0 0 0.00% 0.00%
B 6515 6289 97 97 1.49% 1.54%
C 6550 6282 0 0 0.00% 0.00%
D 6467 6100 416 416 6.43% 6.82%

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 7534 43.19 760 741 157.3
A 0 226 6466 36.4 760 741 157.3
A 3 137 6007 33.48 760 741 157.3
B 7 220 325277 2222.42 748 726 146.0
B 4 216 87714 595.66 748 726 146.0
B 3 112 29077 194.14 748 726 146.0
C 14 238 111828 635.6 735 739 174.8
C 3 233 12066 64.81 735 739 174.8
C 13 61 5194 25.49 735 739 174.8
D 1 52 1587049 9414.99 689 668 168.5
D 1 20 777823 4612.33 689 668 168.5
D 12 218 393120 2329.16 689 668 168.5

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