ASTROSAT CZTI

Data Quality Report

Orbit 07718

Creation date: 2024-06-27T15:23:04.519224
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/AS1A02_158T01_9000001064_07718cztM0_level2.evt modeM0/AS1A02_158T01_9000001064_07718cztM0_level2_quad_clean.evt
Size (bytes)296,680,32036,699,840
Size282.9 MB 35.0 MB
Events in quadrant A1,984,381208,595
Events in quadrant B1,829,703213,286
Events in quadrant C1,695,468210,590
Events in quadrant D3,206,792200,598

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086240
B080210
C078900
D0121710

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3934952.414845%
B393460.152517%
C393420.050839%
D39343318.413828%

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 3934 3934 71 71 1.80% 1.80%
B 3934 3934 3 3 0.08% 0.08%
C 3934 3934 1 1 0.03% 0.03%
D 3934 3934 307 307 7.80% 7.80%

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 15 234 278725 3062.74 441 432 90.9
A 3 1 5166 52.1 441 432 90.9
A 0 226 4316 42.75 441 432 90.9
B 0 229 32228 364.05 447 437 87.3
B 4 173 20255 226.95 447 437 87.3
B 4 239 16675 185.95 447 437 87.3
C 10 22 4559 40.67 432 434 101.4
C 13 61 3405 29.29 432 434 101.4
C 9 68 2843 23.75 432 434 101.4
D 1 239 1318503 12427.48 423 409 106.1
D 13 104 166687 1567.73 423 409 106.1
D 7 55 39026 364.1 423 409 106.1

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