ASTROSAT CZTI

Data Quality Report

Orbit 43295

Creation date: 2024-06-27T22:50:16.415081
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/AS1A12_089T01_9000005864_43295cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43295cztM0_level2_quad_clean.evt
Size (bytes)351,244,80089,265,600
Size335.0 MB 85.1 MB
Events in quadrant A3,620,953585,257
Events in quadrant B2,854,705613,200
Events in quadrant C2,895,215579,577
Events in quadrant D3,199,534537,114

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142682
B0122282
C0121162
D0135122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55411793.230464%
B55411101.985201%
C55411302.346147%
D5541691.245263%

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 7154 5542 132 132 1.85% 2.38%
B 7154 5542 76 76 1.06% 1.37%
C 7154 5542 125 125 1.75% 2.26%
D 7154 5542 73 73 1.02% 1.32%

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 606316 4896.86 598 585 123.7
A 15 237 550291 4443.94 598 585 123.7
A 12 189 100558 808.2 598 585 123.7
B 5 172 239512 2009.87 603 586 118.9
B 0 190 69858 582.72 603 586 118.9
B 5 255 61950 516.2 603 586 118.9
C 2 16 331687 2414.17 585 589 137.1
C 15 214 228562 1662.24 585 589 137.1
C 3 233 24508 174.4 585 589 137.1
D 1 52 328526 2248.17 588 573 145.9
D 1 20 299578 2049.73 588 573 145.9
D 12 6 59949 407.03 588 573 145.9

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