ASTROSAT CZTI

Data Quality Report

Orbit 41593

Creation date: 2024-06-27T22:30:30.657508
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/AS1C07_001T10_9000005678_41593cztM0_level2.fits modeM0/AS1C07_001T10_9000005678_41593cztM0_level2_quad_clean.evt
Size (bytes)305,873,28083,695,680
Size291.7 MB 79.8 MB
Events in quadrant A2,592,627562,275
Events in quadrant B2,299,853578,664
Events in quadrant C2,790,998540,634
Events in quadrant D3,243,828497,690

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109412
B0105032
C0116742
D0133792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5065120.236920%
B5065110.217177%
C50652184.304047%
D50652464.856861%

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 7038 5066 4 4 0.06% 0.08%
B 7038 5066 6 6 0.09% 0.12%
C 7038 5066 207 207 2.94% 4.09%
D 7038 5066 214 214 3.04% 4.22%

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 503741 4613.59 533 522 109.1
A 7 3 15597 138.21 533 522 109.1
A 13 254 8327 71.56 533 522 109.1
B 0 190 57243 555.15 535 521 102.2
B 0 245 34518 332.73 535 521 102.2
B 5 255 33472 322.5 535 521 102.2
C 0 10 575250 4850.52 512 516 118.5
C 15 214 217387 1830.3 512 516 118.5
C 13 61 3459 24.84 512 516 118.5
D 1 47 485411 3816.72 513 496 127.1
D 2 249 321539 2526.9 513 496 127.1
D 13 249 220886 1734.67 513 496 127.1

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