ASTROSAT CZTI

Data Quality Report

Orbit 28593

Creation date: 2024-06-27T19:53:48.012290
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/AS1A10_045T06_9000004108_28593cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28593cztM0_level2_quad_clean.evt
Size (bytes)386,444,16061,269,120
Size368.5 MB 58.4 MB
Events in quadrant A2,474,565381,639
Events in quadrant B2,506,016384,787
Events in quadrant C2,461,749374,395
Events in quadrant D3,920,202362,812

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105401
B0106561
C0104872
D0151401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5012561.117318%
B5012961.915403%
C50111192.374775%
D50113587.144283%

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 5272 5012 1 1 0.02% 0.02%
B 5272 5012 4 4 0.08% 0.08%
C 5271 5012 0 0 0.00% 0.00%
D 5271 5011 248 248 4.70% 4.95%

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 40636 311.7 628 614 128.4
A 13 254 8327 60.07 628 614 128.4
A 8 192 6736 47.68 628 614 128.4
B 10 245 27011 220.33 619 604 119.9
B 5 255 21464 174.05 619 604 119.9
B 12 111 15002 120.13 619 604 119.9
C 14 238 96744 677.96 601 605 141.8
C 7 247 12287 82.38 601 605 141.8
C 0 207 7429 48.12 601 605 141.8
D 8 195 614298 4269.16 592 575 143.8
D 12 233 535184 3718.83 592 575 143.8
D 1 52 408758 2839.39 592 575 143.8

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