ASTROSAT CZTI

Data Quality Report

Orbit 23712

Creation date: 2024-06-27T18:57:48.076070
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_23712cztM0_level2.evt modeM0/AS1A07_054T01_9000003504_23712cztM0_level2_quad_clean.evt
Size (bytes)504,103,680134,876,160
Size480.8 MB 128.6 MB
Events in quadrant A3,162,717910,807
Events in quadrant B3,313,864930,775
Events in quadrant C3,309,938898,570
Events in quadrant D5,002,521854,823

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142902
B0145742
C0145982
D0198552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7034280.398067%
B7034670.952516%
C70341061.506966%
D70341401.990333%

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 7889 7035 0 0 0.00% 0.00%
B 7889 7035 4 4 0.05% 0.06%
C 7889 7034 6 6 0.08% 0.09%
D 7889 7034 104 104 1.32% 1.48%

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 10895 61.62 819 802 163.8
A 3 137 7213 39.14 819 802 163.8
A 0 226 7041 38.09 819 802 163.8
B 4 200 22096 138.4 825 804 153.8
B 12 111 18906 117.67 825 804 153.8
B 11 111 16580 102.55 825 804 153.8
C 14 238 130698 706.58 794 800 183.8
C 7 247 83412 449.37 794 800 183.8
C 13 61 5508 25.61 794 800 183.8
D 1 52 1825868 9732.74 787 764 187.5
D 9 35 107405 568.68 787 764 187.5
D 12 233 39365 205.85 787 764 187.5

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