ASTROSAT CZTI

Data Quality Report

Orbit 08247

Creation date: 2024-06-27T15:29:56.055062
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_086T01_9000001142_08247cztM0_level2.evt modeM0/AS1G07_086T01_9000001142_08247cztM0_level2_quad_clean.evt
Size (bytes)447,937,92065,165,760
Size427.2 MB 62.1 MB
Events in quadrant A3,017,524382,739
Events in quadrant B3,354,399387,770
Events in quadrant C3,041,308384,216
Events in quadrant D3,715,531369,524

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132557
B01403914
C01334510
D0153136

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6434610.948088%
B64311001.554968%
C6432630.979478%
D64341632.533416%

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 7546 6437 0 0 0.00% 0.00%
B 7546 6437 21 21 0.28% 0.33%
C 7546 6435 2 2 0.03% 0.03%
D 7545 6435 87 87 1.15% 1.35%

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 0 226 7238 40.71 783 764 159.0
A 12 194 7008 39.26 783 764 159.0
A 8 15 6390 35.38 783 764 159.0
B 10 16 135780 898.49 788 769 150.3
B 0 214 69578 457.92 788 769 150.3
B 11 51 53085 348.16 788 769 150.3
C 5 128 18458 99.97 768 773 176.9
C 8 128 14247 76.17 768 773 176.9
C 8 112 6618 33.04 768 773 176.9
D 1 52 556032 2836.48 754 734 195.8
D 13 105 188006 956.59 754 734 195.8
D 2 152 85740 434.21 754 734 195.8

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