ASTROSAT CZTI

Data Quality Report

Orbit 24334

Creation date: 2024-06-27T19:04:53.244911
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/AS1A07_145T01_9000003594_24334cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24334cztM0_level2_quad_clean.evt
Size (bytes)558,959,04099,083,520
Size533.1 MB 94.5 MB
Events in quadrant A3,246,131640,409
Events in quadrant B3,328,958660,919
Events in quadrant C5,684,146618,531
Events in quadrant D4,210,017608,507

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140134
B0141306
C0215037
D0170196

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6781270.398171%
B6780620.914454%
C67802103.097345%
D67801802.654867%

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 7852 6782 0 0 0.00% 0.00%
B 7852 6781 0 0 0.00% 0.00%
C 7852 6782 3 3 0.04% 0.04%
D 7852 6781 58 58 0.74% 0.86%

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 10134 55.92 842 825 166.5
A 3 137 7407 39.54 842 825 166.5
A 0 226 7217 38.39 842 825 166.5
B 12 111 19609 117.17 844 823 160.3
B 11 111 17232 102.34 844 823 160.3
B 14 111 15577 92.02 844 823 160.3
C 7 247 2335194 12498.69 804 811 186.8
C 14 238 128504 683.69 804 811 186.8
C 2 16 63557 335.95 804 811 186.8
D 7 238 678721 3455.43 808 782 196.2
D 1 52 138602 702.46 808 782 196.2
D 7 223 133144 674.64 808 782 196.2

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