ASTROSAT CZTI

Data Quality Report

Orbit 16705

Creation date: 2024-06-27T17:26:29.074556
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/AS1T03_024T01_9000002472_16705cztM0_level2.evt modeM0/AS1T03_024T01_9000002472_16705cztM0_level2_quad_clean.evt
Size (bytes)634,703,040101,692,800
Size605.3 MB 97.0 MB
Events in quadrant A5,169,522662,944
Events in quadrant B3,543,115696,358
Events in quadrant C3,511,394674,342
Events in quadrant D6,586,359620,593

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193132
B0144211
C0141961
D0239611

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60915418.881957%
B6091961.576096%
C60911382.265638%
D609178212.838614%

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 7272 6093 411 411 5.65% 6.75%
B 7272 6093 8 8 0.11% 0.13%
C 7272 6093 14 14 0.19% 0.23%
D 7272 6093 523 523 7.19% 8.58%

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 2147673 13458.56 784 768 159.5
A 0 226 6826 37.98 784 768 159.5
A 3 1 6473 35.76 784 768 159.5
B 15 35 170857 1103.92 812 794 154.1
B 0 229 48805 311.65 812 794 154.1
B 0 246 48543 309.95 812 794 154.1
C 0 207 178621 969.99 786 795 183.3
C 3 233 132572 718.8 786 795 183.3
C 14 238 121425 658.0 786 795 183.3
D 2 16 2073548 11238.17 757 739 184.4
D 1 52 1519274 8233.06 757 739 184.4
D 10 70 59782 320.11 757 739 184.4

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