ASTROSAT CZTI

Data Quality Report

Orbit 30993

Creation date: 2024-06-27T20:22:02.902509
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/AS1A10_071T48_9000004478_30993cztM0_level2.evt modeM0/AS1A10_071T48_9000004478_30993cztM0_level2_quad_clean.evt
Size (bytes)596,692,80079,735,680
Size569.1 MB 76.0 MB
Events in quadrant A3,284,289510,722
Events in quadrant B5,347,471513,599
Events in quadrant C3,841,881473,999
Events in quadrant D5,159,419464,327

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135663
B0201973
C0152403
D0200533

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6473420.648849%
B64731442.224625%
C64732563.954890%
D64741231.899907%

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 7608 6474 0 0 0.00% 0.00%
B 7608 6475 32 32 0.42% 0.49%
C 7608 6475 108 108 1.42% 1.67%
D 7609 6477 39 39 0.51% 0.60%

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 11 47 45027 262.78 840 823 168.2
A 13 254 11647 64.35 840 823 168.2
A 3 137 8231 44.04 840 823 168.2
B 6 159 1833216 11534.62 832 812 158.9
B 4 80 153902 963.67 832 812 158.9
B 0 190 31304 191.94 832 812 158.9
C 0 10 556893 3025.04 787 793 183.8
C 14 238 128816 696.41 787 793 183.8
C 3 233 45050 240.75 787 793 183.8
D 13 174 1592311 8426.7 792 774 188.9
D 1 239 175379 924.48 792 774 188.9
D 8 195 170359 897.9 792 774 188.9

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