ASTROSAT CZTI

Data Quality Report

Orbit 12290

Creation date: 2024-06-27T16:25:01.019486
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_064T01_9000001814_12290cztM0_level2.evt modeM0/AS1G08_064T01_9000001814_12290cztM0_level2_quad_clean.evt
Size (bytes)462,539,52081,797,760
Size441.1 MB 78.0 MB
Events in quadrant A3,514,258512,820
Events in quadrant B3,599,040519,307
Events in quadrant C3,085,506513,914
Events in quadrant D3,381,018491,038

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144053
B0145152
C0132402
D0141022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63031292.046644%
B63032163.426940%
C6303881.396161%
D63031342.125972%

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 7439 6305 2 2 0.03% 0.03%
B 7439 6305 57 57 0.77% 0.90%
C 7439 6305 6 6 0.08% 0.10%
D 7439 6305 36 36 0.48% 0.57%

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 1 162 136179 847.95 789 772 159.7
A 1 178 78259 485.24 789 772 159.7
A 0 23 73531 455.64 789 772 159.7
B 4 239 289443 1979.36 777 758 145.8
B 11 51 91480 622.03 777 758 145.8
B 0 85 65884 446.53 777 758 145.8
C 15 208 103051 580.66 760 764 176.2
C 4 254 10777 56.84 760 764 176.2
C 1 16 6529 32.73 760 764 176.2
D 1 52 78153 429.4 761 740 180.3
D 10 50 73912 405.88 761 740 180.3
D 13 104 54274 296.95 761 740 180.3

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