ASTROSAT CZTI

Data Quality Report

Orbit 43347

Creation date: 2024-06-27T22:50:52.435094
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/AS1T05_158T01_9000005868_43347cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43347cztM0_level2_quad_clean.evt
Size (bytes)322,511,04088,274,880
Size307.6 MB 84.2 MB
Events in quadrant A3,342,456579,163
Events in quadrant B2,689,823604,722
Events in quadrant C2,664,210580,515
Events in quadrant D2,822,614531,911

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130302
B0114752
C0111562
D0121412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53781612.993678%
B5378370.687988%
C537890.167348%
D5378701.301599%

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 7111 5379 138 138 1.94% 2.57%
B 7111 5379 22 22 0.31% 0.41%
C 7111 5379 5 5 0.07% 0.09%
D 7111 5379 67 67 0.94% 1.25%

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 10 83 553523 4476.3 594 582 123.5
A 15 237 484848 3920.35 594 582 123.5
A 3 137 6685 49.41 594 582 123.5
B 0 189 177815 1507.31 598 581 117.6
B 0 245 55180 464.34 598 581 117.6
B 3 112 51051 429.23 598 581 117.6
C 15 214 224466 1613.58 591 595 138.7
C 14 254 119295 855.55 591 595 138.7
C 15 111 8209 54.88 591 595 138.7
D 13 249 146343 999.29 590 572 145.9
D 12 6 107912 735.84 590 572 145.9
D 2 249 101414 691.29 590 572 145.9

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