ASTROSAT CZTI

Data Quality Report

Orbit 44964

Creation date: 2024-06-27T23:08:26.346355
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_017T02_9000006032_44964cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44964cztM0_level2_quad_clean.evt
Size (bytes)455,526,72099,524,160
Size434.4 MB 94.9 MB
Events in quadrant A4,851,155668,423
Events in quadrant B3,287,953687,956
Events in quadrant C2,816,274674,350
Events in quadrant D5,432,138555,757

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189841
B0138201
C0126441
D0203331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61071232.014082%
B61081452.373936%
C6108540.884086%
D610873612.049771%

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 7121 6107 4 4 0.06% 0.07%
B 7123 6109 37 37 0.52% 0.61%
C 7123 6109 4 4 0.06% 0.07%
D 7123 6109 579 579 8.13% 9.48%

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 2077216 14128.62 698 682 147.0
A 13 248 46300 310.38 698 682 147.0
A 0 243 12858 82.84 698 682 147.0
B 4 171 214951 1551.63 693 671 138.1
B 5 255 83597 600.48 693 671 138.1
B 5 172 70964 509.0 693 671 138.1
C 12 250 68458 415.0 691 697 163.3
C 14 254 24571 146.22 691 697 163.3
C 3 233 16565 97.18 691 697 163.3
D 13 187 794745 4724.18 662 642 168.1
D 13 249 686005 4077.28 662 642 168.1
D 5 222 679387 4037.91 662 642 168.1

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