ASTROSAT CZTI

Data Quality Report

Orbit 05503

Creation date: 2024-06-27T14:56:01.432526
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/AS1A02_162T01_9000000704_05503cztM0_level2.evt modeM0/AS1A02_162T01_9000000704_05503cztM0_level2_quad_clean.evt
Size (bytes)589,887,36074,125,440
Size562.6 MB 70.7 MB
Events in quadrant A3,153,693450,779
Events in quadrant B5,246,611435,856
Events in quadrant C4,190,725441,120
Events in quadrant D4,800,855429,988

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144763
B0204042
C0173452
D0191292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6988731.044648%
B69883725.323412%
C69882753.935318%
D69881832.618775%

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 6989 10 10 0.13% 0.14%
B 7628 6989 121 121 1.59% 1.73%
C 7628 6989 183 183 2.40% 2.62%
D 7628 6989 135 135 1.77% 1.93%

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 42978 256.1 802 783 164.8
A 0 50 13889 79.54 802 783 164.8
A 13 6 9408 52.35 802 783 164.8
B 15 255 1662484 10826.29 799 780 153.5
B 15 204 255871 1661.96 799 780 153.5
B 0 219 75770 488.57 799 780 153.5
C 1 241 565331 3169.88 766 770 178.1
C 9 247 480076 2691.19 766 770 178.1
C 1 16 146773 819.77 766 770 178.1
D 2 63 1320716 6950.98 768 743 189.9
D 2 152 229592 1205.12 768 743 189.9
D 12 233 85140 444.43 768 743 189.9

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