ASTROSAT CZTI

Data Quality Report

Orbit 22349

Creation date: 2024-06-27T18:40:25.338709
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/AS1C05_004T01_9000003308_22349cztM0_level2.evt modeM0/AS1C05_004T01_9000003308_22349cztM0_level2_quad_clean.evt
Size (bytes)355,046,40081,420,480
Size338.6 MB 77.6 MB
Events in quadrant A2,519,314528,441
Events in quadrant B2,642,860547,611
Events in quadrant C2,612,334520,553
Events in quadrant D2,621,437502,214

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107851
B0110201
C0109331
D0112661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5240290.553435%
B5240360.687023%
C5240681.297710%
D5240290.553435%

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 6645 5241 0 0 0.00% 0.00%
B 6645 5241 0 0 0.00% 0.00%
C 6645 5240 0 0 0.00% 0.00%
D 6645 5241 14 14 0.21% 0.27%

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 13 254 7099 49.72 652 641 129.9
A 0 226 5723 39.13 652 641 129.9
A 3 137 5257 35.54 652 641 129.9
B 0 229 21847 175.84 659 644 120.6
B 12 111 14529 115.15 659 644 120.6
B 11 111 12445 97.87 659 644 120.6
C 14 238 102394 689.41 637 643 147.6
C 0 10 15299 99.3 637 643 147.6
C 0 207 8303 51.9 637 643 147.6
D 12 227 98120 636.64 633 615 153.2
D 7 223 80523 521.74 633 615 153.2
D 1 52 42031 270.42 633 615 153.2

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