ASTROSAT CZTI

Data Quality Report

Orbit 27358

Creation date: 2024-06-27T19:39:17.169544
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/AS1A09_038T12_9000003926_27358cztM0_level2.evt modeM0/AS1A09_038T12_9000003926_27358cztM0_level2_quad_clean.evt
Size (bytes)269,040,96066,144,960
Size256.6 MB 63.1 MB
Events in quadrant A1,677,997458,800
Events in quadrant B1,690,272464,444
Events in quadrant C2,547,100424,984
Events in quadrant D2,025,107438,699

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068800
B069610
C096340
D081400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A303520.065898%
B303680.263505%
C30363029.947299%
D3036300.988142%

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 3035 3035 0 0 0.00% 0.00%
B 3036 3036 0 0 0.00% 0.00%
C 3036 3036 216 216 7.11% 7.11%
D 3036 3036 25 25 0.82% 0.82%

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 15 174 5917 65.53 433 427 83.8
A 13 254 4761 51.73 433 427 83.8
A 0 226 3826 40.57 433 427 83.8
B 0 190 15682 197.47 422 414 77.3
B 15 32 13380 167.7 422 414 77.3
B 12 111 8416 103.5 422 414 77.3
C 2 16 924539 10213.53 396 400 90.5
C 14 238 66430 729.76 396 400 90.5
C 15 208 9833 104.25 396 400 90.5
D 1 52 411041 4057.7 415 407 101.2
D 12 227 15343 147.59 415 407 101.2
D 2 234 12167 116.21 415 407 101.2

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