ASTROSAT CZTI

Data Quality Report

Orbit 14414

Creation date: 2024-06-27T16:54:48.525209
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_186T01_9000002126_14414cztM0_level2.evt modeM0/AS1A04_186T01_9000002126_14414cztM0_level2_quad_clean.evt
Size (bytes)485,055,360109,998,720
Size462.6 MB 104.9 MB
Events in quadrant A3,291,589730,692
Events in quadrant B3,387,171727,444
Events in quadrant C4,098,627715,319
Events in quadrant D3,471,682704,936

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140503
B0144412
C0165422
D0147242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6495410.631255%
B6495630.969977%
C64951121.724403%
D6495610.939184%

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 8906 6497 8 8 0.09% 0.12%
B 8906 6497 18 18 0.20% 0.28%
C 8906 6498 30 30 0.34% 0.46%
D 8906 6498 18 18 0.20% 0.28%

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 80565 482.87 814 800 165.2
A 8 15 39486 234.19 814 800 165.2
A 4 2 14965 85.75 814 800 165.2
B 15 222 70292 455.84 815 797 152.5
B 4 142 27731 176.67 815 797 152.5
B 4 173 27079 172.39 815 797 152.5
C 3 233 936179 5168.85 790 795 181.0
C 0 207 82188 449.77 790 795 181.0
C 13 61 5638 26.76 790 795 181.0
D 2 120 123046 639.53 788 768 191.2
D 12 110 118417 615.32 788 768 191.2
D 5 51 87321 452.68 788 768 191.2

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