ASTROSAT CZTI

Data Quality Report

Orbit 47999

Creation date: 2024-08-13T08:43:08.544095
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/AS1A13_062T02_9000006384_47999cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47999cztM0_level2_quad_clean.evt
Size (bytes)479,465,280108,408,960
Size457.3 MB 103.4 MB
Events in quadrant A6,906,866705,418
Events in quadrant B3,105,751762,475
Events in quadrant C4,018,029692,328
Events in quadrant D3,198,905656,602

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248952
B0140372
C0167172
D0144952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66803385.059880%
B6681550.823230%
C66813795.672803%
D6681741.107619%

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 7680 6681 70 70 0.91% 1.05%
B 7681 6682 8 8 0.10% 0.12%
C 7681 6682 303 303 3.94% 4.53%
D 7681 6682 58 58 0.76% 0.87%

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 4023267 26062.95 738 722 154.3
A 14 248 20305 126.88 738 722 154.3
A 13 254 10242 61.68 738 722 154.3
B 0 198 47950 319.99 752 730 147.6
B 0 197 35137 233.16 752 730 147.6
B 5 32 27979 184.65 752 730 147.6
C 1 3 636501 3717.56 728 733 171.0
C 14 254 358794 2093.71 728 733 171.0
C 12 2 107294 623.1 728 733 171.0
D 2 249 137140 736.73 739 716 185.2
D 2 165 123577 663.48 739 716 185.2
D 11 224 36322 192.28 739 716 185.2

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