ASTROSAT CZTI

Data Quality Report

Orbit 44563

Creation date: 2024-06-27T23:04:00.671491
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_003T01_9000006002_44563cztM0_level2.fits modeM0/AS1A13_003T01_9000006002_44563cztM0_level2_quad_clean.evt
Size (bytes)556,130,880108,195,840
Size530.4 MB 103.2 MB
Events in quadrant A5,428,281733,244
Events in quadrant B5,062,695706,808
Events in quadrant C3,887,761734,699
Events in quadrant D5,695,597641,085

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215742
B0194622
C0160072
D0214492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66032754.164774%
B660375011.358473%
C66021432.166010%
D66024777.225083%

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 7568 6603 71 71 0.94% 1.08%
B 7568 6603 468 468 6.18% 7.09%
C 7567 6602 54 54 0.71% 0.82%
D 7566 6601 356 356 4.71% 5.39%

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 1816629 11409.8 768 749 159.2
A 15 223 450376 2825.16 768 749 159.2
A 13 248 189328 1184.91 768 749 159.2
B 5 235 1149527 7856.56 742 720 146.2
B 5 172 861495 5886.74 742 720 146.2
B 4 171 41550 279.23 742 720 146.2
C 15 208 553057 3148.12 752 758 175.4
C 14 254 244776 1390.91 752 758 175.4
C 3 233 143988 816.42 752 758 175.4
D 13 174 1247417 6755.76 739 717 184.5
D 1 52 633595 3429.51 739 717 184.5
D 7 38 357805 1935.03 739 717 184.5

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