ASTROSAT CZTI

Data Quality Report

Orbit 44013

Creation date: 2024-06-27T22:58:17.043638
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/AS1A13_037T01_9000005930_44013cztM0_level2.fits modeM0/AS1A13_037T01_9000005930_44013cztM0_level2_quad_clean.evt
Size (bytes)470,462,400112,930,560
Size448.7 MB 107.7 MB
Events in quadrant A5,475,077713,630
Events in quadrant B3,388,461784,214
Events in quadrant C3,346,468759,040
Events in quadrant D4,657,794672,158

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210653
B0148624
C0149053
D0186873

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70405247.443182%
B70391752.486149%
C70391161.647961%
D70392934.162523%

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 7695 7042 258 258 3.35% 3.66%
B 7694 7041 7 7 0.09% 0.10%
C 7694 7041 11 11 0.14% 0.16%
D 7694 7041 173 173 2.25% 2.46%

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 1255552 7657.51 785 767 163.9
A 14 238 1084217 6611.91 785 767 163.9
A 15 223 69958 422.25 785 767 163.9
B 0 213 48804 300.65 806 781 159.7
B 4 171 40263 247.18 806 781 159.7
B 3 112 35096 214.83 806 781 159.7
C 14 254 112332 594.83 796 801 187.5
C 3 233 98820 522.77 796 801 187.5
C 2 14 27612 142.99 796 801 187.5
D 1 52 1078412 5517.5 775 749 195.3
D 7 80 170664 869.94 775 749 195.3
D 5 235 77173 391.28 775 749 195.3

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