ASTROSAT CZTI

Data Quality Report

Orbit 12684

Creation date: 2024-06-27T16:31:01.603744
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_174T01_9000001876_12684cztM0_level2.evt modeM0/AS1A04_174T01_9000001876_12684cztM0_level2_quad_clean.evt
Size (bytes)507,542,40085,507,200
Size484.0 MB 81.5 MB
Events in quadrant A3,189,597545,973
Events in quadrant B4,967,576503,735
Events in quadrant C3,188,462545,389
Events in quadrant D3,560,785517,461

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140532
B0192051
C0141041
D0154311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6834440.643840%
B68346259.145449%
C6834230.336553%
D68341522.224173%

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 7144 6834 0 0 0.00% 0.00%
B 7145 6835 463 463 6.48% 6.77%
C 7144 6834 4 4 0.06% 0.06%
D 7145 6835 137 137 1.92% 2.00%

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 12 189 36626 212.21 816 800 168.8
A 8 15 13954 77.91 816 800 168.8
A 0 226 7231 38.09 816 800 168.8
B 4 239 1720288 11493.81 779 762 149.6
B 3 64 43054 282.69 779 762 149.6
B 0 214 36715 240.32 779 762 149.6
C 15 208 68389 364.04 796 802 185.7
C 14 234 10813 53.92 796 802 185.7
C 13 61 5867 27.28 796 802 185.7
D 1 52 445084 2379.47 778 760 186.7
D 10 199 106760 567.65 778 760 186.7
D 2 234 26367 137.13 778 760 186.7

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