ASTROSAT CZTI

Data Quality Report

Orbit 29980

Creation date: 2024-06-27T20:09:38.627412
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/AS1A10_094T16_9000004304_29980cztM0_level2.evt modeM0/AS1A10_094T16_9000004304_29980cztM0_level2_quad_clean.evt
Size (bytes)200,730,24050,472,000
Size191.4 MB 48.1 MB
Events in quadrant A1,275,548346,941
Events in quadrant B2,001,490344,372
Events in quadrant C1,287,062332,871
Events in quadrant D1,349,058330,269

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052031
B075171
C053331
D054381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2417622.565163%
B24171084.468349%
C2417652.689284%
D2417341.406703%

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 3397 2418 0 0 0.00% 0.00%
B 3397 2418 0 0 0.00% 0.00%
C 3397 2418 0 0 0.00% 0.00%
D 3397 2418 8 8 0.24% 0.33%

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 8 192 13823 202.17 326 319 66.8
A 13 254 4956 69.42 326 319 66.8
A 3 137 3149 42.37 326 319 66.8
B 6 159 680304 10998.63 317 309 61.8
B 0 190 51914 834.69 317 309 61.8
B 6 36 17765 282.34 317 309 61.8
C 14 238 50350 683.7 308 308 73.2
C 3 233 28973 391.64 308 308 73.2
C 2 114 5885 76.2 308 308 73.2
D 8 195 76511 997.47 317 308 76.4
D 7 80 47365 615.96 317 308 76.4
D 1 52 9820 124.51 317 308 76.4

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