ASTROSAT CZTI

Data Quality Report

Orbit 46632

Creation date: 2024-06-27T23:25:37.305283
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_080T02_9000006242_46632cztM0_level2.fits modeM0/AS1A13_080T02_9000006242_46632cztM0_level2_quad_clean.evt
Size (bytes)477,593,28090,760,320
Size455.5 MB 86.6 MB
Events in quadrant A5,444,911619,526
Events in quadrant B3,730,969634,439
Events in quadrant C2,572,168620,011
Events in quadrant D5,481,822470,258

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199682
B0152722
C0121552
D0203322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57822143.701141%
B57823025.223106%
C5782180.311311%
D578293216.118990%

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 6897 5783 98 98 1.42% 1.69%
B 6897 5783 189 189 2.74% 3.27%
C 6897 5783 7 7 0.10% 0.12%
D 6897 5783 805 805 11.67% 13.92%

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 2994354 23656.89 614 604 126.5
A 0 243 24942 192.32 614 604 126.5
A 9 191 21032 161.42 614 604 126.5
B 5 32 1117623 9388.05 609 591 119.0
B 15 201 119974 1003.35 609 591 119.0
B 4 171 20460 166.99 609 591 119.0
C 14 254 121962 856.27 604 607 141.7
C 1 3 65995 461.37 604 607 141.7
C 12 2 10208 67.74 604 607 141.7
D 1 52 1569600 11343.78 548 530 138.3
D 12 233 1151560 8321.51 548 530 138.3
D 8 176 235963 1702.09 548 530 138.3

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