ASTROSAT CZTI

Data Quality Report

Orbit 47154

Creation date: 2024-06-27T23:32:18.626459
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/AS1C09_003T01_9000006298_47154cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47154cztM0_level2_quad_clean.evt
Size (bytes)461,528,640109,710,720
Size440.1 MB 104.6 MB
Events in quadrant A6,635,861727,422
Events in quadrant B3,834,420750,751
Events in quadrant C3,005,060719,854
Events in quadrant D3,094,119661,651

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240711
B0161161
C0139021
D0143961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66322433.664053%
B66321852.789505%
C6632350.527744%
D6632650.980097%

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 7812 6633 99 99 1.27% 1.49%
B 7812 6632 65 65 0.83% 0.98%
C 7812 6633 20 20 0.26% 0.30%
D 7812 6633 46 46 0.59% 0.69%

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 10 83 3753917 25524.48 717 701 147.0
A 15 235 39754 265.58 717 701 147.0
A 0 247 25929 171.56 717 701 147.0
B 4 171 363112 2567.93 722 699 141.1
B 4 21 273410 1932.34 722 699 141.1
B 5 255 128463 905.29 722 699 141.1
C 14 254 128336 770.13 708 711 165.7
C 15 208 61863 369.01 708 711 165.7
C 12 2 42036 249.37 708 711 165.7
D 12 1 136316 777.67 701 679 174.4
D 1 47 62727 355.75 701 679 174.4
D 13 23 42731 241.1 701 679 174.4

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