ASTROSAT CZTI

Data Quality Report

Orbit 08020

Creation date: 2024-06-27T15:26:57.513872
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_154T02_9000001102_08020cztM0_level2.evt modeM0/AS1G06_154T02_9000001102_08020cztM0_level2_quad_clean.evt
Size (bytes)408,412,80084,833,280
Size389.5 MB 80.9 MB
Events in quadrant A2,928,480522,531
Events in quadrant B3,048,764542,959
Events in quadrant C2,977,708543,683
Events in quadrant D2,983,876518,803

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130913
B0133862
C0131452
D0134332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6320260.411392%
B6320420.664557%
C6320260.411392%
D6320320.506329%

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 7500 6321 0 0 0.00% 0.00%
B 7500 6321 0 0 0.00% 0.00%
C 7500 6321 0 0 0.00% 0.00%
D 7500 6321 19 19 0.25% 0.30%

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 0 226 6976 39.99 761 744 155.8
A 12 194 6728 38.4 761 744 155.8
A 13 254 3042 14.75 761 744 155.8
B 5 250 51642 343.01 772 754 148.4
B 12 111 16324 104.95 772 754 148.4
B 11 111 13583 86.47 772 754 148.4
C 1 16 19800 107.93 756 762 176.4
C 13 61 5796 28.54 756 762 176.4
C 1 3 3431 15.13 756 762 176.4
D 2 14 90323 501.58 743 724 178.6
D 2 136 49769 274.56 743 724 178.6
D 1 52 33088 181.18 743 724 178.6

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