ASTROSAT CZTI

Data Quality Report

Orbit 44866

Creation date: 2024-06-27T23:07:24.081531
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/AS1A13_017T01_9000006028_44866cztM0_level2.fits modeM0/AS1A13_017T01_9000006028_44866cztM0_level2_quad_clean.evt
Size (bytes)513,881,280112,389,120
Size490.1 MB 107.2 MB
Events in quadrant A5,226,626759,698
Events in quadrant B3,462,020798,658
Events in quadrant C3,496,970759,137
Events in quadrant D6,343,678642,180

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205762
B0145432
C0146312
D0232902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63552704.248623%
B63551762.769473%
C63551622.549174%
D635574411.707317%

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 7535 6356 12 12 0.16% 0.19%
B 7535 6356 25 25 0.33% 0.39%
C 7535 6356 55 55 0.73% 0.87%
D 7535 6356 502 502 6.66% 7.90%

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 10 83 2211389 13866.85 773 758 159.4
A 7 3 12189 71.7 773 758 159.4
A 13 248 9357 53.94 773 758 159.4
B 5 255 90716 590.17 778 757 152.4
B 0 186 88971 578.72 778 757 152.4
B 4 222 49135 317.38 778 757 152.4
C 12 2 195556 1088.45 771 776 179.0
C 14 254 159491 886.91 771 776 179.0
C 1 3 76080 420.81 771 776 179.0
D 1 52 1379706 7573.28 739 717 182.1
D 13 174 698849 3834.08 739 717 182.1
D 5 235 593874 3257.56 739 717 182.1

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