ASTROSAT CZTI

Data Quality Report

Orbit 10753

Creation date: 2024-06-27T16:03:23.564353
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/AS1A03_064T01_9000001548_10753cztM0_level2.evt modeM0/AS1A03_064T01_9000001548_10753cztM0_level2_quad_clean.evt
Size (bytes)639,941,76073,411,200
Size610.3 MB 70.0 MB
Events in quadrant A3,792,536449,736
Events in quadrant B4,485,786453,155
Events in quadrant C3,241,917459,674
Events in quadrant D7,433,555419,211

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153933
B0176092
C0136542
D0264502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63091872.964020%
B63092353.724838%
C6309600.951022%
D6309103116.341734%

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 7594 6309 99 99 1.30% 1.57%
B 7594 6309 96 96 1.26% 1.52%
C 7594 6309 0 0 0.00% 0.00%
D 7594 6309 873 873 11.50% 13.84%

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 15 239 356507 2133.51 840 825 166.7
A 15 174 134628 802.6 840 825 166.7
A 15 223 28913 168.48 840 825 166.7
B 4 239 551398 3478.18 842 825 158.3
B 0 85 484952 3058.42 842 825 158.3
B 0 214 43566 270.01 842 825 158.3
C 13 61 6078 27.51 830 836 190.6
C 14 234 4187 17.58 830 836 190.6
C 8 222 2294 7.65 830 836 190.6
D 2 16 3867937 20464.94 783 761 189.0
D 10 199 201870 1064.26 783 761 189.0
D 1 52 167562 882.7 783 761 189.0

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