ASTROSAT CZTI

Data Quality Report

Orbit 13733

Creation date: 2024-06-27T16:45:18.759832
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_062T01_9000002038_13733cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13733cztM0_level2_quad_clean.evt
Size (bytes)537,563,520100,987,200
Size512.7 MB 96.3 MB
Events in quadrant A3,161,358653,345
Events in quadrant B3,593,197646,595
Events in quadrant C4,740,297653,311
Events in quadrant D4,346,703653,875

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136763
B0150912
C0184472
D0171692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6472380.587145%
B6472971.498764%
C64724877.524722%
D64722924.511743%

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 7633 6475 7 7 0.09% 0.11%
B 7633 6475 27 27 0.35% 0.42%
C 7633 6475 329 329 4.31% 5.08%
D 7633 6475 174 174 2.28% 2.69%

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 69 30805 182.29 811 794 164.6
A 1 162 9294 51.63 811 794 164.6
A 0 226 7247 39.2 811 794 164.6
B 0 219 147565 962.71 810 792 152.5
B 3 64 104844 682.49 810 792 152.5
B 8 250 74349 482.47 810 792 152.5
C 4 254 1583055 8676.94 782 785 182.4
C 3 233 96334 523.98 782 785 182.4
C 4 238 7864 38.82 782 785 182.4
D 1 52 790203 3768.8 783 768 209.5
D 8 195 257641 1226.32 783 768 209.5
D 10 157 229599 1092.45 783 768 209.5

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