ASTROSAT CZTI

Data Quality Report

Orbit 29104

Creation date: 2024-06-27T20:00:13.762767
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/AS1A10_063T01_9000004182_29104cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29104cztM0_level2_quad_clean.evt
Size (bytes)516,775,68074,131,200
Size492.8 MB 70.7 MB
Events in quadrant A3,249,669451,664
Events in quadrant B3,355,244461,614
Events in quadrant C3,696,013441,446
Events in quadrant D4,898,948426,647

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137221
B0139901
C0151091
D0189712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6639570.858563%
B6639540.813376%
C66391171.762314%
D66383895.860199%

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 7614 6640 0 0 0.00% 0.00%
B 7614 6640 4 4 0.05% 0.06%
C 7614 6640 2 2 0.03% 0.03%
D 7613 6639 292 292 3.84% 4.40%

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 13 254 10989 60.63 839 822 167.7
A 3 137 8163 43.78 839 822 167.7
A 13 6 7496 39.8 839 822 167.7
B 0 190 44451 272.25 828 806 160.3
B 10 245 41228 252.15 828 806 160.3
B 12 111 19768 118.28 828 806 160.3
C 3 233 421139 2254.93 799 807 186.4
C 14 238 128794 686.6 799 807 186.4
C 10 9 16289 83.06 799 807 186.4
D 1 52 1129431 5978.11 793 774 188.8
D 8 195 546374 2889.86 793 774 188.8
D 13 104 171968 906.76 793 774 188.8

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