ASTROSAT CZTI

Data Quality Report

Orbit 30062

Creation date: 2024-06-27T20:10:28.487482
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_071T07_9000004322_30062cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30062cztM0_level2_quad_clean.evt
Size (bytes)534,242,88087,935,040
Size509.5 MB 83.9 MB
Events in quadrant A3,203,704568,550
Events in quadrant B5,080,790578,619
Events in quadrant C3,295,035542,505
Events in quadrant D4,162,452522,443

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134263
B0196192
C0136472
D0168722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6464380.587871%
B6464510.788985%
C6464661.021040%
D64641812.800124%

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 7624 6465 1 1 0.01% 0.02%
B 7624 6465 2 2 0.03% 0.03%
C 7624 6465 0 0 0.00% 0.00%
D 7624 6465 137 137 1.80% 2.12%

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 29696 176.89 823 810 163.3
A 13 254 11660 66.44 823 810 163.3
A 3 137 8071 44.46 823 810 163.3
B 6 159 1797658 11535.2 817 799 155.8
B 0 230 40002 251.67 817 799 155.8
B 5 255 30843 192.87 817 799 155.8
C 14 238 130867 707.91 785 792 183.7
C 3 233 56693 304.23 785 792 183.7
C 1 90 25177 132.71 785 792 183.7
D 13 104 896300 4938.47 776 761 181.3
D 8 195 139468 764.9 776 761 181.3
D 2 250 84909 464.04 776 761 181.3

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