ASTROSAT CZTI

Data Quality Report

Orbit 16325

Creation date: 2024-06-27T17:21:03.195296
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/AS1A05_096T04_9000002406_16325cztM0_level2.evt modeM0/AS1A05_096T04_9000002406_16325cztM0_level2_quad_clean.evt
Size (bytes)541,920,960111,643,200
Size516.8 MB 106.5 MB
Events in quadrant A3,129,999747,969
Events in quadrant B5,101,020723,592
Events in quadrant C3,281,935753,332
Events in quadrant D4,463,117707,704

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134103
B0196632
C0136392
D0174702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A643190.139947%
B643166210.293889%
C6431600.932981%
D64313204.975898%

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 7697 6433 0 0 0.00% 0.00%
B 7697 6433 466 466 6.05% 7.24%
C 7697 6433 0 0 0.00% 0.00%
D 7697 6433 223 223 2.90% 3.47%

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 15 174 47160 292.18 799 782 158.7
A 0 226 6962 38.93 799 782 158.7
A 13 210 6117 33.61 799 782 158.7
B 3 112 1882447 13356.06 765 746 140.9
B 4 173 41395 288.52 765 746 140.9
B 0 189 37994 264.38 765 746 140.9
C 14 238 123708 666.91 798 805 184.3
C 3 233 37148 197.21 798 805 184.3
C 0 207 7452 36.07 798 805 184.3
D 2 14 976638 5219.36 783 761 187.0
D 12 110 364681 1946.38 783 761 187.0
D 2 122 70299 371.91 783 761 187.0

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