ASTROSAT CZTI

Data Quality Report

Orbit 15589

Creation date: 2024-06-27T17:10:48.477458
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/AS1A04_037T02_9000002310_15589cztM0_level2.evt modeM0/AS1A04_037T02_9000002310_15589cztM0_level2_quad_clean.evt
Size (bytes)410,673,60075,286,080
Size391.6 MB 71.8 MB
Events in quadrant A2,946,953486,861
Events in quadrant B2,843,081494,132
Events in quadrant C2,787,003468,235
Events in quadrant D3,498,503457,898

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118692
B0114711
C0112691
D0136751

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5316781.467269%
B5316951.787058%
C53161021.918736%
D53161462.746426%

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 6632 5317 0 0 0.00% 0.00%
B 6632 5317 2 2 0.03% 0.04%
C 6632 5317 0 0 0.00% 0.00%
D 6632 5317 65 65 0.98% 1.22%

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 0 253 185417 1281.71 715 700 144.1
A 9 143 7190 45.03 715 700 144.1
A 0 226 6292 38.8 715 700 144.1
B 0 189 43668 321.25 704 689 133.8
B 4 48 15452 110.34 704 689 133.8
B 12 111 14909 106.29 704 689 133.8
C 14 238 106028 668.92 679 684 157.5
C 3 233 31244 194.05 679 684 157.5
C 13 61 4843 26.41 679 684 157.5
D 12 110 668053 3968.12 697 678 168.2
D 2 16 43854 256.72 697 678 168.2
D 10 70 42561 249.03 697 678 168.2

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