ASTROSAT CZTI

Data Quality Report

Orbit 14488

Creation date: 2024-06-27T16:55:53.466541
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/AS1G08_034T02_9000002136_14488cztM0_level2.evt modeM0/AS1G08_034T02_9000002136_14488cztM0_level2_quad_clean.evt
Size (bytes)458,153,280110,502,720
Size436.9 MB 105.4 MB
Events in quadrant A3,292,642728,737
Events in quadrant B3,507,262741,873
Events in quadrant C3,317,521734,018
Events in quadrant D3,336,704709,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136874
B0145843
C0138443
D0140573

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6200500.806452%
B6200801.290323%
C6200450.725806%
D6200560.903226%

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 7556 6202 4 4 0.05% 0.06%
B 7556 6202 22 22 0.29% 0.35%
C 7556 6202 0 0 0.00% 0.00%
D 7556 6203 18 18 0.24% 0.29%

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 12 189 65658 401.21 810 797 161.7
A 4 2 48233 293.43 810 797 161.7
A 11 29 37572 227.48 810 797 161.7
B 15 222 103016 675.94 817 798 151.2
B 0 189 71594 468.15 817 798 151.2
B 10 247 28310 181.93 817 798 151.2
C 3 233 131188 707.56 802 809 184.3
C 0 207 58538 313.29 802 809 184.3
C 13 61 5701 26.55 802 809 184.3
D 2 120 143975 718.97 792 774 199.2
D 10 199 108795 542.34 792 774 199.2
D 2 234 25613 124.71 792 774 199.2

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