ASTROSAT CZTI

Data Quality Report

Orbit 28945

Creation date: 2024-06-27T19:58:22.371442
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_123T08_9000004152_28945cztM0_level2.evt modeM0/AS1A10_123T08_9000004152_28945cztM0_level2_quad_clean.evt
Size (bytes)280,172,16041,209,920
Size267.2 MB 39.3 MB
Events in quadrant A1,556,426262,168
Events in quadrant B1,577,465268,114
Events in quadrant C1,599,132258,378
Events in quadrant D3,544,997242,984

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065361
B066332
C067491
D0126331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3030461.518152%
B3029481.584681%
C3029892.938263%
D302949216.242984%

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 4030 3033 0 0 0.00% 0.00%
B 4029 3032 0 0 0.00% 0.00%
C 4029 3032 0 0 0.00% 0.00%
D 4029 3032 288 288 7.15% 9.50%

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 5117 57.04 403 393 82.8
A 3 137 4023 43.83 403 393 82.8
A 0 226 3462 37.06 403 393 82.8
B 10 245 12599 157.04 399 389 77.8
B 12 111 9315 114.8 399 389 77.8
B 11 111 8479 104.05 399 389 77.8
C 14 238 62778 684.4 386 386 91.2
C 3 233 22918 247.16 386 386 91.2
C 2 114 7764 80.93 386 386 91.2
D 8 195 1628849 17808.84 375 363 91.4
D 1 52 392764 4291.23 375 363 91.4
D 5 233 45862 497.57 375 363 91.4

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