ASTROSAT CZTI

Data Quality Report

Orbit 08482

Creation date: 2024-06-27T15:33:18.183424
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/AS1G07_007T01_9000001196_08482cztM0_level2.evt modeM0/AS1G07_007T01_9000001196_08482cztM0_level2_quad_clean.evt
Size (bytes)443,301,12060,937,920
Size422.8 MB 58.1 MB
Events in quadrant A3,258,602356,222
Events in quadrant B3,465,924359,900
Events in quadrant C3,074,181348,539
Events in quadrant D3,194,028336,029

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134653
B0140272
C0131502
D0136782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6363540.848656%
B6363821.288700%
C6363220.345749%
D6363470.738645%

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 7673 6364 2 2 0.03% 0.03%
B 7673 6364 6 6 0.08% 0.09%
C 7673 6364 1 1 0.01% 0.02%
D 7673 6364 23 23 0.30% 0.36%

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 4 2 30597 180.34 820 806 165.2
A 15 236 20929 121.82 820 806 165.2
A 14 111 19666 114.17 820 806 165.2
B 5 255 123979 795.37 824 807 154.9
B 11 51 53179 338.19 824 807 154.9
B 0 214 47475 301.35 824 807 154.9
C 13 61 6266 30.04 786 794 182.1
C 8 222 4809 22.04 786 794 182.1
C 12 4 4489 20.29 786 794 182.1
D 2 14 51337 258.65 780 760 195.5
D 13 137 47399 238.51 780 760 195.5
D 1 52 33822 169.08 780 760 195.5

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