ASTROSAT CZTI

Data Quality Report

Orbit 28513

Creation date: 2024-06-27T19:52:33.724243
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_110T05_9000004098_28513cztM0_level2.evt modeM0/AS1A10_110T05_9000004098_28513cztM0_level2_quad_clean.evt
Size (bytes)519,868,80090,388,800
Size495.8 MB 86.2 MB
Events in quadrant A3,224,002587,792
Events in quadrant B3,251,283593,529
Events in quadrant C3,254,929564,177
Events in quadrant D5,580,852546,065

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135711
B0136741
C0135651
D0208561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6386801.252740%
B6387941.471739%
C63871131.769219%
D63874316.748082%

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 7506 6386 0 0 0.00% 0.00%
B 7507 6387 2 2 0.03% 0.03%
C 7507 6387 0 0 0.00% 0.00%
D 7507 6387 448 448 5.97% 7.01%

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 6 16 34568 205.22 826 808 164.5
A 13 254 10001 55.88 826 808 164.5
A 3 137 7502 40.69 826 808 164.5
B 0 230 29328 188.7 811 793 151.2
B 10 245 19229 121.92 811 793 151.2
B 12 111 18021 113.93 811 793 151.2
C 14 238 132392 729.29 783 789 180.5
C 7 247 31950 172.68 783 789 180.5
C 3 233 21440 114.44 783 789 180.5
D 8 195 1594089 8590.98 787 768 185.5
D 1 52 754312 4063.01 787 768 185.5
D 2 250 124144 665.23 787 768 185.5

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