ASTROSAT CZTI

Data Quality Report

Orbit 38605

Creation date: 2024-06-27T21:54:00.812026
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_052T04_9000005388_38605cztM0_level2.fits modeM0/AS1A12_052T04_9000005388_38605cztM0_level2_quad_clean.evt
Size (bytes)439,223,04091,837,440
Size418.9 MB 87.6 MB
Events in quadrant A2,913,480671,576
Events in quadrant B3,143,667667,581
Events in quadrant C2,956,650654,175
Events in quadrant D6,844,140426,548

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116443
B0124592
C0118632
D0236642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5150140.271845%
B51502244.349515%
C5150691.339806%
D5150167732.563107%

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 7093 5151 6 6 0.08% 0.12%
B 7093 5151 142 142 2.00% 2.76%
C 7093 5151 55 55 0.78% 1.07%
D 7093 5151 1702 1702 24.00% 33.04%

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 404553 3167.7 630 620 127.5
A 13 248 41129 317.68 630 620 127.5
A 12 189 16370 123.51 630 620 127.5
B 5 184 385947 3323.25 618 603 116.0
B 5 200 95702 820.15 618 603 116.0
B 5 172 67198 574.32 618 603 116.0
C 15 214 213886 1508.44 617 622 141.4
C 15 159 156063 1099.45 617 622 141.4
C 14 254 138633 976.17 617 622 141.4
D 12 227 4157271 32468.04 526 512 128.0
D 1 47 251609 1961.29 526 512 128.0
D 14 52 127166 989.28 526 512 128.0

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