ASTROSAT CZTI

Data Quality Report

Orbit 29385

Creation date: 2024-06-27T20:03:43.074957
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/AS1T03_280T01_9000004222_29385cztM0_level2.evt modeM0/AS1T03_280T01_9000004222_29385cztM0_level2_quad_clean.evt
Size (bytes)368,645,76039,896,640
Size351.6 MB 38.0 MB
Events in quadrant A1,786,484252,929
Events in quadrant B1,891,690254,319
Events in quadrant C2,389,091239,975
Events in quadrant D4,856,356209,541

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072080
B075960
C097280
D0169100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A354120.056481%
B3542150.423490%
C35421484.178430%
D354274721.089780%

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 3541 3541 0 0 0.00% 0.00%
B 3542 3542 3 3 0.08% 0.08%
C 3542 3542 1 1 0.03% 0.03%
D 3542 3542 727 727 20.53% 20.53%

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 7737 79.38 462 454 91.7
A 0 226 3991 38.55 462 454 91.7
A 3 137 3804 36.51 462 454 91.7
B 5 255 60251 708.26 450 441 84.4
B 0 229 32148 375.47 450 441 84.4
B 12 111 9228 104.05 450 441 84.4
C 3 233 461617 4561.58 433 437 101.1
C 14 238 113250 1115.85 433 437 101.1
C 14 254 61173 600.75 433 437 101.1
D 12 33 1422048 14429.73 417 408 98.5
D 1 52 1357484 13774.4 417 408 98.5
D 8 195 155982 1579.08 417 408 98.5

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