ASTROSAT CZTI

Data Quality Report

Orbit 10259

Creation date: 2024-06-27T15:56:58.504169
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/AS1A03_052T01_9000001480_10259cztM0_level2.evt modeM0/AS1A03_052T01_9000001480_10259cztM0_level2_quad_clean.evt
Size (bytes)489,574,08063,236,160
Size466.9 MB 60.3 MB
Events in quadrant A3,204,563373,448
Events in quadrant B4,010,170374,301
Events in quadrant C3,035,643367,844
Events in quadrant D4,136,016346,353

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134953
B0160482
C0133592
D0164602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6488530.816893%
B64882453.776202%
C6488410.631936%
D64881312.019112%

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 7643 6488 0 0 0.00% 0.00%
B 7643 6488 120 120 1.57% 1.85%
C 7643 6489 0 0 0.00% 0.00%
D 7643 6488 73 73 0.96% 1.13%

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 8 15 95649 584.16 804 789 162.4
A 13 253 7830 43.36 804 789 162.4
A 0 226 7436 40.93 804 789 162.4
B 10 247 607022 3990.76 799 782 151.9
B 4 239 159267 1043.28 799 782 151.9
B 0 214 66105 430.01 799 782 151.9
C 13 61 5822 28.04 777 784 179.7
C 14 67 3363 14.35 777 784 179.7
C 14 234 2840 11.44 777 784 179.7
D 8 195 523798 2619.64 757 744 199.7
D 1 52 288253 1439.95 757 744 199.7
D 10 172 118652 590.53 757 744 199.7

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