ASTROSAT CZTI

Data Quality Report

Orbit 40103

Creation date: 2024-06-27T22:12:23.596449
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/AS1A12_004T01_9000005520_40103cztM0_level2.fits modeM0/AS1A12_004T01_9000005520_40103cztM0_level2_quad_clean.evt
Size (bytes)362,151,36093,977,280
Size345.4 MB 89.6 MB
Events in quadrant A3,346,975621,621
Events in quadrant B2,882,195650,300
Events in quadrant C2,768,740621,432
Events in quadrant D3,954,368544,757

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134233
B0125792
C0119112
D0158962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58231091.871887%
B5823440.755624%
C5823130.223253%
D58233566.113687%

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 7195 5824 78 78 1.08% 1.34%
B 7195 5824 24 24 0.33% 0.41%
C 7195 5824 9 9 0.13% 0.15%
D 7195 5824 300 300 4.17% 5.15%

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 10 83 488497 3766.48 632 618 129.5
A 13 248 339002 2612.36 632 618 129.5
A 2 79 42286 321.68 632 618 129.5
B 10 246 245409 1961.1 632 613 124.8
B 0 189 101013 804.32 632 613 124.8
B 0 230 19053 147.73 632 613 124.8
C 15 214 242732 1645.99 622 623 147.1
C 10 20 40141 268.67 622 623 147.1
C 0 10 33043 220.41 622 623 147.1
D 12 227 891820 5998.77 602 585 148.6
D 13 249 347047 2331.98 602 585 148.6
D 1 47 192331 1290.61 602 585 148.6

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