ASTROSAT CZTI

Data Quality Report

Orbit 23211

Creation date: 2024-06-27T18:51:19.669434
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/AS1A08_008T02_9000003430_23211cztM0_level2.evt modeM0/AS1A08_008T02_9000003430_23211cztM0_level2_quad_clean.evt
Size (bytes)230,045,76059,486,400
Size219.4 MB 56.7 MB
Events in quadrant A1,617,626389,229
Events in quadrant B1,653,108398,618
Events in quadrant C1,786,403379,738
Events in quadrant D1,654,654370,335

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074560
B074860
C075880
D076550

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A372430.080559%
B372420.053706%
C3724100.268528%
D3724170.456498%

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 3724 3724 0 0 0.00% 0.00%
B 3724 3724 1 1 0.03% 0.03%
C 3724 3724 0 0 0.00% 0.00%
D 3724 3724 11 11 0.30% 0.30%

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 5111 54.87 419 409 85.7
A 3 137 3759 39.09 419 409 85.7
A 0 226 3460 35.6 419 409 85.7
B 12 111 9624 113.48 419 408 81.2
B 0 190 9281 109.26 419 408 81.2
B 11 111 8774 103.02 419 408 81.2
C 0 10 91774 935.89 410 412 97.6
C 14 238 65455 666.28 410 412 97.6
C 0 239 16076 160.46 410 412 97.6
D 12 233 49841 486.71 413 400 101.6
D 13 153 27317 264.98 413 400 101.6
D 2 234 12416 118.29 413 400 101.6

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