ASTROSAT CZTI

Data Quality Report

Orbit 07384

Creation date: 2024-06-27T15:19:10.488541
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/AS1G06_117T01_9000001012_07384cztM0_level2.evt modeM0/AS1G06_117T01_9000001012_07384cztM0_level2_quad_clean.evt
Size (bytes)458,850,24090,034,560
Size437.6 MB 85.9 MB
Events in quadrant A3,818,805545,425
Events in quadrant B3,215,102579,304
Events in quadrant C3,064,419577,935
Events in quadrant D3,332,002546,307

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161693
B0143352
C0140702
D0149842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68492423.533363%
B6849310.452621%
C6849220.321215%
D6849360.525624%

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 7779 6850 214 214 2.75% 3.12%
B 7779 6850 2 2 0.03% 0.03%
C 7779 6850 5 5 0.06% 0.07%
D 7779 6850 29 29 0.37% 0.42%

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 15 239 531769 3365.73 777 760 157.8
A 15 234 277455 1753.79 777 760 157.8
A 14 111 13010 77.64 777 760 157.8
B 0 214 48377 308.1 803 784 154.5
B 4 81 24287 152.15 803 784 154.5
B 12 111 15838 97.45 803 784 154.5
C 1 16 20829 110.68 778 782 181.1
C 12 4 6795 33.2 778 782 181.1
C 13 61 5927 28.41 778 782 181.1
D 14 34 228374 1206.75 767 743 188.6
D 12 221 79096 415.38 767 743 188.6
D 2 14 29801 154.05 767 743 188.6

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