ASTROSAT CZTI

Data Quality Report

Orbit 16350

Creation date: 2024-06-27T17:21:25.080518
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/AS1A05_069T02_9000002414_16350cztM0_level2.evt modeM0/AS1A05_069T02_9000002414_16350cztM0_level2_quad_clean.evt
Size (bytes)469,226,88093,211,200
Size447.5 MB 88.9 MB
Events in quadrant A3,172,224598,242
Events in quadrant B3,522,968606,246
Events in quadrant C3,301,116582,157
Events in quadrant D3,750,463560,575

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139863
B0149202
C0141322
D0158522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6819250.366623%
B6819691.011879%
C6819630.923889%
D68191261.847778%

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 7675 6821 0 0 0.00% 0.00%
B 7675 6821 20 20 0.26% 0.29%
C 7675 6821 2 2 0.03% 0.03%
D 7675 6821 91 91 1.19% 1.33%

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 15 174 44926 268.61 812 794 164.3
A 0 226 6919 37.28 812 794 164.3
A 15 223 6643 35.6 812 794 164.3
B 0 189 104541 665.3 813 793 155.9
B 15 35 87478 555.88 813 793 155.9
B 0 219 43431 273.42 813 793 155.9
C 14 238 118341 636.0 783 788 184.8
C 3 233 87676 470.09 783 788 184.8
C 7 247 20139 104.69 783 788 184.8
D 12 218 461416 2379.25 788 763 193.6
D 1 52 121549 623.85 788 763 193.6
D 13 104 91367 467.96 788 763 193.6

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