ASTROSAT CZTI

Data Quality Report

Orbit 23714

Creation date: 2024-06-27T18:57:49.679726
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/AS1A07_054T01_9000003504_23714cztM0_level2.evt modeM0/AS1A07_054T01_9000003504_23714cztM0_level2_quad_clean.evt
Size (bytes)509,806,080126,705,600
Size486.2 MB 120.8 MB
Events in quadrant A3,104,839853,136
Events in quadrant B3,490,861866,729
Events in quadrant C3,289,515835,986
Events in quadrant D5,084,565799,630

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140582
B0150232
C0143422
D0198402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69161442.082128%
B69172153.108284%
C69171622.342056%
D69173114.496169%

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 7086 6917 0 0 0.00% 0.00%
B 7087 6917 32 32 0.45% 0.46%
C 7087 6918 0 0 0.00% 0.00%
D 7087 6919 189 189 2.67% 2.73%

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 11729 67.74 804 786 161.5
A 3 137 7332 40.52 804 786 161.5
A 0 226 6850 37.54 804 786 161.5
B 15 33 272931 1783.25 804 783 152.6
B 0 189 48345 311.65 804 783 152.6
B 12 111 18703 117.42 804 783 152.6
C 7 247 130199 718.38 775 779 180.2
C 14 238 123904 683.44 775 779 180.2
C 3 233 7950 39.8 775 779 180.2
D 7 238 1207913 6452.1 773 749 187.1
D 1 52 538320 2873.23 773 749 187.1
D 13 174 195082 1038.68 773 749 187.1

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