ASTROSAT CZTI

Data Quality Report

Orbit 01411

Creation date: 2024-06-27T14:12:17.353636
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/AS1G04_003T01_9000000234_01411cztM0_level2.evt modeM0/AS1G04_003T01_9000000234_01411cztM0_level2_quad_clean.evt
Size (bytes)1,075,452,48091,514,880
Size1.0 GB 87.3 MB
Events in quadrant A8,673,023589,842
Events in quadrant B8,813,267588,623
Events in quadrant C7,671,170578,315
Events in quadrant D6,997,120576,337

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0301572
B0306371
C0272551
D0252461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6276691.099426%
B62761993.170809%
C62761512.405991%
D6276370.589547%

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 6806 6276 497 497 7.30% 7.92%
B 6806 6276 662 662 9.73% 10.55%
C 6806 6277 295 295 4.33% 4.70%
D 6806 6277 198 198 2.91% 3.15%

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 15 127 1178781 2521.01 1924 1933 466.8
A 4 32 84745 177.4 1924 1933 466.8
A 15 233 9503 16.22 1924 1933 466.8
B 8 4 1039582 2224.88 1962 1971 466.4
B 12 52 99387 208.88 1962 1971 466.4
B 6 53 94514 198.43 1962 1971 466.4
C 2 53 407188 813.55 1782 1840 498.2
C 15 241 244003 486.03 1782 1840 498.2
C 3 79 37092 70.75 1782 1840 498.2
D 9 53 187770 349.95 1764 1818 531.4
D 13 205 84669 155.92 1764 1818 531.4
D 2 88 78532 144.37 1764 1818 531.4

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