ASTROSAT CZTI

Data Quality Report

Orbit 20443

Creation date: 2024-06-27T18:15:28.431318
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_160T02_9000003022_20443cztM0_level2.evt modeM0/AS1A05_160T02_9000003022_20443cztM0_level2_quad_clean.evt
Size (bytes)229,037,76020,577,600
Size218.4 MB 19.6 MB
Events in quadrant A1,556,073103,795
Events in quadrant B1,640,791106,830
Events in quadrant C1,563,619100,999
Events in quadrant D1,971,72598,629

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064471
B066361
C064082
D077971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29712739.188825%
B29712839.525412%
C29702779.326599%
D297031810.707071%

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 2986 2971 1 1 0.03% 0.03%
B 2986 2972 5 5 0.17% 0.17%
C 2985 2971 0 0 0.00% 0.00%
D 2985 2970 106 106 3.55% 3.57%

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 12 16 18439 219.6 397 387 82.2
A 12 194 5828 66.19 397 387 82.2
A 5 16 5360 60.5 397 387 82.2
B 0 219 24200 303.72 394 381 78.4
B 10 245 21392 267.91 394 381 78.4
B 0 189 17287 215.57 394 381 78.4
C 14 238 60050 656.44 378 379 90.9
C 9 54 14600 156.45 378 379 90.9
C 3 233 9781 103.43 378 379 90.9
D 1 52 462330 4760.0 387 372 97.0
D 12 218 20746 209.93 387 372 97.0
D 2 234 14262 143.12 387 372 97.0

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