ASTROSAT CZTI

Data Quality Report

Orbit 43377

Creation date: 2024-06-27T22:51:13.735780
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/AS1A09_143T01_9000005870_43377cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43377cztM0_level2_quad_clean.evt
Size (bytes)313,776,00091,658,880
Size299.2 MB 87.4 MB
Events in quadrant A3,390,727605,608
Events in quadrant B2,579,534629,609
Events in quadrant C2,694,806596,007
Events in quadrant D2,506,410546,698

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134601
B0117651
C0116082
D0118851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56881212.127286%
B5688140.246132%
C568780.140672%
D5688260.457103%

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 7089 5689 104 104 1.47% 1.83%
B 7089 5689 6 6 0.08% 0.11%
C 7088 5688 4 4 0.06% 0.07%
D 7089 5689 19 19 0.27% 0.33%

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 606795 4904.96 601 588 123.6
A 15 237 390890 3158.02 601 588 123.6
A 13 248 57259 458.53 601 588 123.6
B 0 189 84592 711.84 602 586 118.0
B 3 112 32268 268.46 602 586 118.0
B 15 85 27990 232.21 602 586 118.0
C 15 214 237752 1725.82 588 591 137.4
C 3 233 123583 895.01 588 591 137.4
C 0 207 30228 215.67 588 591 137.4
D 5 171 54908 381.09 589 572 142.6
D 13 249 53046 368.03 589 572 142.6
D 12 6 42552 294.43 589 572 142.6

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