ASTROSAT CZTI

Data Quality Report

Orbit 11434

Creation date: 2024-06-27T16:13:03.570847
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/AS1G08_010T01_9000001672_11434cztM0_level2.evt modeM0/AS1G08_010T01_9000001672_11434cztM0_level2_quad_clean.evt
Size (bytes)483,563,520112,213,440
Size461.2 MB 107.0 MB
Events in quadrant A3,421,274758,358
Events in quadrant B4,429,227755,765
Events in quadrant C2,980,308735,903
Events in quadrant D3,383,689706,369

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141922
B0174601
C0130561
D0143691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6332981.547694%
B63323235.101074%
C6332540.852811%
D63321041.642451%

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 7637 6333 6 6 0.08% 0.09%
B 7637 6333 148 148 1.94% 2.34%
C 7637 6333 0 0 0.00% 0.00%
D 7637 6333 35 35 0.46% 0.55%

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 15 174 77774 475.08 809 797 162.0
A 8 5 70529 430.37 809 797 162.0
A 8 15 51600 313.54 809 797 162.0
B 4 239 1015629 6732.17 798 782 150.7
B 11 51 89082 585.75 798 782 150.7
B 15 204 82496 542.06 798 782 150.7
C 13 61 5568 27.28 764 770 175.9
C 3 202 1852 6.15 764 770 175.9
C 3 203 1658 5.05 764 770 175.9
D 1 52 287672 1561.11 767 747 183.8
D 9 85 48234 258.37 767 747 183.8
D 2 120 33644 178.99 767 747 183.8

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