ASTROSAT CZTI

Data Quality Report

Orbit 33266

Creation date: 2024-06-27T20:46:49.097135
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/AS1A11_047T10_9000004778_33266cztM0_level2.evt modeM0/AS1A11_047T10_9000004778_33266cztM0_level2_quad_clean.evt
Size (bytes)513,046,08054,630,720
Size489.3 MB 52.1 MB
Events in quadrant A2,593,197335,237
Events in quadrant B4,564,177314,165
Events in quadrant C3,000,265327,802
Events in quadrant D5,029,292313,864

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107212
B0168621
C0117591
D0185421

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A518160.115808%
B518182115.846362%
C5181791.524802%
D51813105.983401%

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 7244 5182 0 0 0.00% 0.00%
B 7244 5182 633 633 8.74% 12.22%
C 7244 5182 61 61 0.84% 1.18%
D 7244 5182 254 254 3.51% 4.90%

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 15 169 69684 535.08 648 636 129.0
A 13 6 12104 88.87 648 636 129.0
A 13 254 9211 66.45 648 636 129.0
B 5 172 1845652 16492.72 593 578 111.9
B 15 85 107321 954.15 593 578 111.9
B 5 200 96910 861.09 593 578 111.9
C 15 214 234825 1646.26 623 627 142.3
C 0 10 153641 1075.59 623 627 142.3
C 10 49 133056 930.89 623 627 142.3
D 8 195 1187671 7025.45 618 606 169.0
D 2 250 544290 3217.71 618 606 169.0
D 12 233 235611 1390.84 618 606 169.0

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