ASTROSAT CZTI

Data Quality Report

Orbit 04573

Creation date: 2024-06-27T14:43:57.355732
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/AS1G05_233T10_9000000570_04573cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04573cztM0_level2_quad_clean.evt
Size (bytes)541,448,64065,390,400
Size516.4 MB 62.4 MB
Events in quadrant A3,128,846397,038
Events in quadrant B3,542,566397,678
Events in quadrant C2,972,373393,434
Events in quadrant D6,318,476343,786

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135403
B0147392
C0131842
D0232332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6417610.950600%
B6417871.355774%
C6417210.327256%
D6417131020.414524%

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 7757 6418 12 12 0.15% 0.19%
B 7757 6418 20 20 0.26% 0.31%
C 7757 6418 1 1 0.01% 0.02%
D 7757 6418 1240 1240 15.99% 19.32%

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 13 104261 663.04 773 757 156.1
A 13 251 21514 132.97 773 757 156.1
A 15 174 9509 56.06 773 757 156.1
B 14 167 239852 1632.36 783 766 146.5
B 10 16 88670 600.17 783 766 146.5
B 12 18 83797 566.9 783 766 146.5
C 14 48 22225 123.47 752 756 173.9
C 1 3 8714 45.77 752 756 173.9
C 13 61 6262 31.66 752 756 173.9
D 13 235 3467596 21798.74 668 649 159.0
D 2 136 118586 741.54 668 649 159.0
D 10 15 66396 413.39 668 649 159.0

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