ASTROSAT CZTI

Data Quality Report

Orbit 11711

Creation date: 2024-06-27T16:17:14.038474
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/AS1A04_227T01_9000001724_11711cztM0_level2.evt modeM0/AS1A04_227T01_9000001724_11711cztM0_level2_quad_clean.evt
Size (bytes)549,613,44071,305,920
Size524.2 MB 68.0 MB
Events in quadrant A4,490,717430,732
Events in quadrant B4,046,223429,011
Events in quadrant C3,134,684436,415
Events in quadrant D4,535,004411,263

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176903
B0159552
C0134432
D0178262

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64601622.507740%
B64822353.625424%
C6482430.663376%
D64581352.090430%

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 7613 6464 13 13 0.17% 0.20%
B 7613 6485 103 103 1.35% 1.59%
C 7613 6485 0 0 0.00% 0.00%
D 7613 6462 72 72 0.95% 1.11%

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 673034 4018.02 821 803 167.3
A 8 5 377437 2251.2 821 803 167.3
A 1 162 110747 657.15 821 803 167.3
B 4 239 628448 3998.71 825 805 157.0
B 15 204 52170 327.25 825 805 157.0
B 3 64 47745 299.05 825 805 157.0
C 13 61 5824 27.07 802 809 185.3
C 12 4 3408 14.03 802 809 185.3
C 8 222 2530 9.29 802 809 185.3
D 8 195 518382 2721.31 789 768 190.2
D 10 119 502047 2635.43 789 768 190.2
D 7 80 252180 1321.78 789 768 190.2

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