ASTROSAT CZTI

Data Quality Report

Orbit 32086

Creation date: 2024-06-27T20:36:20.217820
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/AS1C06_002T04_9000004684_32086cztM0_level2.evt modeM0/AS1C06_002T04_9000004684_32086cztM0_level2_quad_clean.evt
Size (bytes)889,286,400110,174,400
Size848.1 MB 105.1 MB
Events in quadrant A3,136,713803,712
Events in quadrant B11,159,232662,630
Events in quadrant C3,952,271739,380
Events in quadrant D8,233,346662,795

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136562
B0378426
C0161162
D0289742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6689200.298998%
B6688301045.005981%
C66885588.343301%
D6688146221.860048%

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 7669 6690 0 0 0.00% 0.00%
B 7667 6687 2340 2340 30.52% 34.99%
C 7668 6688 89 89 1.16% 1.33%
D 7668 6688 1363 1363 17.78% 20.38%

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 6 17673 104.16 807 790 162.1
A 13 254 14813 86.51 807 790 162.1
A 3 137 8176 45.57 807 790 162.1
B 10 245 6446257 47463.96 702 684 135.8
B 6 159 1702276 12530.2 702 684 135.8
B 5 172 116569 853.35 702 684 135.8
C 0 10 448342 2523.56 754 756 177.4
C 14 238 281099 1580.62 754 756 177.4
C 14 254 218667 1228.62 754 756 177.4
D 12 227 3963035 23342.51 710 691 169.7
D 12 233 541122 3183.73 710 691 169.7
D 12 218 499527 2938.69 710 691 169.7

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