ASTROSAT CZTI

Data Quality Report

Orbit 46584

Creation date: 2024-06-27T23:25:04.626279
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_092T03_9000006234_46584cztM0_level2.fits modeM0/AS1A13_092T03_9000006234_46584cztM0_level2_quad_clean.evt
Size (bytes)346,700,16054,688,320
Size330.6 MB 52.2 MB
Events in quadrant A3,270,960374,478
Events in quadrant B1,911,627382,685
Events in quadrant C1,796,179382,886
Events in quadrant D5,571,317257,982

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011942170
B08265115
C0805373
D019223132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A36291223.361808%
B36341504.127683%
C3643391.070546%
D3643119432.775185%

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 4082 3645 1 1 0.02% 0.03%
B 4082 3656 47 47 1.15% 1.29%
C 4082 3656 13 13 0.32% 0.36%
D 4082 3656 1177 1177 28.83% 32.19%

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 1649251 18695.11 414 405 88.2
A 13 254 6440 68.43 414 405 88.2
A 3 137 5146 53.75 414 405 88.2
B 15 201 196775 2322.56 415 401 84.6
B 0 190 21407 248.44 415 401 84.6
B 5 32 14812 170.44 415 401 84.6
C 14 254 173479 1738.46 411 413 99.6
C 14 67 9927 95.57 411 413 99.6
C 12 249 6773 63.89 411 413 99.6
D 13 138 3383507 36167.27 362 350 93.5
D 13 249 379331 4051.46 362 350 93.5
D 2 120 204000 2177.1 362 350 93.5

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