ASTROSAT CZTI

Data Quality Report

Orbit 10973

Creation date: 2024-06-27T16:06:24.156455
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/AS1G08_027T06_9000001594_10973cztM0_level2.evt modeM0/AS1G08_027T06_9000001594_10973cztM0_level2_quad_clean.evt
Size (bytes)495,794,88095,296,320
Size472.8 MB 90.9 MB
Events in quadrant A3,680,089629,254
Events in quadrant B4,513,967614,935
Events in quadrant C2,885,618612,388
Events in quadrant D3,506,817588,687

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150782
B0175631
C0129381
D0145381

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63141171.853025%
B63145638.916693%
C6314470.744378%
D63141081.710485%

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 7349 6314 25 25 0.34% 0.40%
B 7349 6315 305 305 4.15% 4.83%
C 7349 6315 0 0 0.00% 0.00%
D 7349 6315 32 32 0.44% 0.51%

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 8 5 370017 2327.12 776 759 158.7
A 8 15 275852 1733.68 776 759 158.7
A 8 6 35069 216.23 776 759 158.7
B 4 239 1462513 10201.09 753 737 143.3
B 0 214 41371 283.57 753 737 143.3
B 0 229 25737 174.46 753 737 143.3
C 13 61 5445 27.47 738 743 171.2
C 8 222 5352 26.92 738 743 171.2
C 14 234 2450 9.97 738 743 171.2
D 1 52 344605 1942.55 742 723 177.0
D 8 195 91957 515.37 742 723 177.0
D 13 104 73467 410.92 742 723 177.0

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