ASTROSAT CZTI

Data Quality Report

Orbit 30049

Creation date: 2024-06-27T20:10:15.247226
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/AS1A10_071T09_9000004320_30049cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30049cztM0_level2_quad_clean.evt
Size (bytes)506,459,52074,125,440
Size483.0 MB 70.7 MB
Events in quadrant A3,311,096466,509
Events in quadrant B4,955,378470,431
Events in quadrant C3,398,660441,150
Events in quadrant D3,254,945435,672

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133912
B0188752
C0137112
D0132972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6167470.762121%
B6167781.264796%
C61671802.918761%
D6167220.356737%

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 8662 6169 2 2 0.02% 0.03%
B 8662 6169 0 0 0.00% 0.00%
C 8662 6169 1 1 0.01% 0.02%
D 8662 6169 6 6 0.07% 0.10%

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 8 192 25604 147.1 849 837 168.4
A 12 96 11716 64.62 849 837 168.4
A 13 254 10733 58.78 849 837 168.4
B 6 159 1624710 10286.19 841 824 157.9
B 12 111 19263 116.8 841 824 157.9
B 11 111 17426 105.16 841 824 157.9
C 14 238 172149 934.3 794 802 183.4
C 14 254 57207 307.56 794 802 183.4
C 3 233 40433 216.1 794 802 183.4
D 8 195 129263 683.78 800 785 187.9
D 2 250 29441 152.51 800 785 187.9
D 2 234 22212 114.04 800 785 187.9

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