ASTROSAT CZTI

Data Quality Report

Orbit 29733

Creation date: 2024-06-27T20:07:15.295982
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_007T01_9000004276_29733cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29733cztM0_level2_quad_clean.evt
Size (bytes)666,864,000101,033,280
Size636.0 MB 96.4 MB
Events in quadrant A3,320,487670,321
Events in quadrant B5,345,707679,182
Events in quadrant C4,818,142648,212
Events in quadrant D6,277,938613,348

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138292
B0200902
C0188412
D0233404

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6433661.025960%
B64331832.844707%
C64334486.964091%
D64323535.488184%

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 7628 6433 0 0 0.00% 0.00%
B 7628 6433 11 11 0.14% 0.17%
C 7628 6433 50 50 0.66% 0.78%
D 7627 6433 235 235 3.08% 3.65%

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 16 29403 167.65 852 836 170.4
A 13 254 12180 66.57 852 836 170.4
A 12 194 10685 57.8 852 836 170.4
B 6 159 1898738 11683.73 850 829 162.4
B 0 190 43344 261.73 850 829 162.4
B 0 229 25069 149.22 850 829 162.4
C 3 233 1355866 7188.33 810 819 188.5
C 14 238 149541 788.95 810 819 188.5
C 10 22 83431 438.24 810 819 188.5
D 8 195 1831324 9559.41 809 791 191.5
D 13 104 557591 2907.72 809 791 191.5
D 7 80 405904 2115.58 809 791 191.5

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