ASTROSAT CZTI

Data Quality Report

Orbit 33194

Creation date: 2024-06-27T20:45:55.916388
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/AS1A11_080T02_9000004768_33194cztM0_level2.evt modeM0/AS1A11_080T02_9000004768_33194cztM0_level2_quad_clean.evt
Size (bytes)575,334,72054,714,240
Size548.7 MB 52.2 MB
Events in quadrant A2,401,574330,873
Events in quadrant B6,069,721322,726
Events in quadrant C4,090,041331,456
Events in quadrant D4,519,097315,197

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102552
B0216001
C0154551
D0172411

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A508770.137606%
B508789417.574209%
C508758311.460586%
D50871392.732455%

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 7059 5088 0 0 0.00% 0.00%
B 7059 5088 577 577 8.17% 11.34%
C 7059 5088 535 535 7.58% 10.51%
D 7059 5088 116 116 1.64% 2.28%

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 13 254 9176 68.82 618 606 124.5
A 13 6 8814 65.92 618 606 124.5
A 0 31 5645 40.47 618 606 124.5
B 5 31 1565171 14131.2 589 576 110.7
B 5 15 748115 6751.67 589 576 110.7
B 5 14 553525 4994.16 589 576 110.7
C 9 187 1642415 12608.77 564 568 130.2
C 0 10 126406 966.38 564 568 130.2
C 1 241 96363 735.67 564 568 130.2
D 8 195 1124700 7647.05 596 584 147.0
D 12 218 315666 2143.42 596 584 147.0
D 2 250 216516 1468.93 596 584 147.0

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