ASTROSAT CZTI

Data Quality Report

Orbit 24059

Creation date: 2024-06-27T19:01:39.258587
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/AS1A07_165T01_9000003558_24059cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24059cztM0_level2_quad_clean.evt
Size (bytes)448,462,080130,438,080
Size427.7 MB 124.4 MB
Events in quadrant A3,102,200892,458
Events in quadrant B3,340,934898,296
Events in quadrant C3,567,415859,498
Events in quadrant D3,139,778857,637

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131391
B0137181
C0147171
D0133631

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63421081.702933%
B63421302.049827%
C63431572.475169%
D6343891.403122%

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 7327 6342 3 3 0.04% 0.05%
B 7327 6342 1 1 0.01% 0.02%
C 7328 6343 0 0 0.00% 0.00%
D 7328 6343 9 9 0.12% 0.14%

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 3 1 34455 215.44 792 778 156.3
A 2 250 13956 84.3 792 778 156.3
A 13 254 9469 55.6 792 778 156.3
B 0 189 152544 1050.41 783 765 144.5
B 0 245 63096 431.37 783 765 144.5
B 0 190 23586 157.94 783 765 144.5
C 7 247 513577 2983.83 751 754 171.9
C 14 238 122010 705.52 751 754 171.9
C 13 61 5225 26.01 751 754 171.9
D 1 52 81692 436.48 772 749 185.4
D 8 195 50353 267.49 772 749 185.4
D 2 234 30685 161.43 772 749 185.4

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