ASTROSAT CZTI

Data Quality Report

Orbit 11680

Creation date: 2024-06-27T16:16:41.058932
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/AS1A04_037T03_9000001722_11680cztM0_level2.evt modeM0/AS1A04_037T03_9000001722_11680cztM0_level2_quad_clean.evt
Size (bytes)631,745,28074,027,520
Size602.5 MB 70.6 MB
Events in quadrant A5,271,399414,267
Events in quadrant B6,074,647471,975
Events in quadrant C3,184,823475,676
Events in quadrant D4,182,436446,731

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198073
B0220412
C0131772
D0164442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A619669311.184635%
B6196100516.220142%
C6196781.258877%
D61961923.098773%

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 7492 6199 419 419 5.59% 6.76%
B 7492 6199 725 725 9.68% 11.70%
C 7492 6199 0 0 0.00% 0.00%
D 7492 6199 108 108 1.44% 1.74%

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 5 1889868 12145.1 774 760 155.5
A 1 162 154625 989.2 774 760 155.5
A 1 178 87949 560.54 774 760 155.5
B 3 64 2850584 19261.23 792 774 148.0
B 4 239 73783 493.45 792 774 148.0
B 15 204 45887 304.91 792 774 148.0
C 13 61 5919 27.43 816 824 185.7
C 3 202 2052 6.61 816 824 185.7
C 3 203 1811 5.31 816 824 185.7
D 1 52 644810 3423.29 798 778 188.1
D 8 195 279348 1480.71 798 778 188.1
D 13 104 180417 954.85 798 778 188.1

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