ASTROSAT CZTI

Data Quality Report

Orbit 45413

Creation date: 2024-06-27T23:11:09.405477
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/AS1A13_049T07_9000006056_45413cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45413cztM0_level2_quad_clean.evt
Size (bytes)411,978,24086,143,680
Size392.9 MB 82.2 MB
Events in quadrant A4,511,325572,994
Events in quadrant B2,640,639595,593
Events in quadrant C2,547,857569,557
Events in quadrant D5,133,351494,737

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172441
B0115441
C0114021
D0190491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53651873.485555%
B53651332.479031%
C5366781.453597%
D53664297.994782%

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 6330 5365 18 18 0.28% 0.34%
B 6330 5365 45 45 0.71% 0.84%
C 6331 5366 14 14 0.22% 0.26%
D 6331 5366 338 338 5.34% 6.30%

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 10 83 2098509 16608.95 606 594 126.3
A 15 174 46534 363.7 606 594 126.3
A 9 191 16598 126.7 606 594 126.3
B 15 201 159198 1313.39 607 588 120.8
B 0 186 25582 206.97 607 588 120.8
B 12 111 15456 123.12 607 588 120.8
C 0 239 84787 592.23 602 603 142.1
C 14 254 82152 573.69 602 603 142.1
C 3 233 17645 119.89 602 603 142.1
D 1 52 1427390 9733.52 581 563 146.6
D 13 249 535237 3647.44 581 563 146.6
D 11 241 441093 3005.21 581 563 146.6

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