ASTROSAT CZTI

Data Quality Report

Orbit 33468

Creation date: 2024-06-27T20:49:09.014287
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/AS1A11_047T10_9000004802_33468cztM0_level2.evt modeM0/AS1A11_047T10_9000004802_33468cztM0_level2_quad_clean.evt
Size (bytes)441,383,04065,646,720
Size420.9 MB 62.6 MB
Events in quadrant A2,406,068420,684
Events in quadrant B3,868,050413,412
Events in quadrant C2,698,928409,489
Events in quadrant D4,050,736388,957

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102042
B0147931
C0109151
D0154901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A506840.078927%
B50682555.031571%
C5068350.690608%
D5068591.164167%

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 7191 5069 0 0 0.00% 0.00%
B 7191 5069 188 188 2.61% 3.71%
C 7191 5069 30 30 0.42% 0.59%
D 7191 5069 52 52 0.72% 1.03%

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 13 254 9732 74.7 618 607 122.2
A 7 192 8374 63.58 618 607 122.2
A 13 6 7317 54.93 618 607 122.2
B 5 172 439161 3828.14 601 586 114.6
B 5 255 394922 3441.99 601 586 114.6
B 4 170 352169 3068.82 601 586 114.6
C 15 214 222926 1657.18 586 589 134.2
C 0 10 97513 722.42 586 589 134.2
C 3 233 29547 215.84 586 589 134.2
D 8 195 1287125 8996.45 588 570 143.0
D 2 152 138133 961.93 588 570 143.0
D 2 250 108193 752.57 588 570 143.0

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