ASTROSAT CZTI

Data Quality Report

Orbit 10607

Creation date: 2024-06-27T16:01:24.525648
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/AS1T01_191T01_9000001536_10607cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10607cztM0_level2_quad_clean.evt
Size (bytes)463,426,56091,742,400
Size442.0 MB 87.5 MB
Events in quadrant A2,821,178612,486
Events in quadrant B4,604,665587,703
Events in quadrant C2,695,767605,820
Events in quadrant D3,519,632566,796

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121844
B0175117
C0119885
D01426910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5799240.413864%
B57994858.363511%
C579860.103484%
D5798180.310452%

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 7020 5801 1 1 0.01% 0.02%
B 7020 5801 342 342 4.87% 5.90%
C 7020 5801 2 2 0.03% 0.03%
D 7020 5801 13 13 0.19% 0.22%

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 1 162 29866 199.47 709 697 146.2
A 15 174 17525 115.08 709 697 146.2
A 1 178 10361 66.09 709 697 146.2
B 4 239 1681005 12770.89 696 683 131.6
B 0 219 95024 717.02 696 683 131.6
B 11 51 54797 411.28 696 683 131.6
C 14 234 32332 201.12 679 687 157.3
C 0 207 11007 65.59 679 687 157.3
C 13 61 5115 28.14 679 687 157.3
D 2 16 550373 3355.64 670 655 163.8
D 8 195 180639 1098.68 670 655 163.8
D 5 222 77245 467.53 670 655 163.8

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