ASTROSAT CZTI

Data Quality Report

Orbit 10652

Creation date: 2024-06-27T16:02:01.466286
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_10652cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10652cztM0_level2_quad_clean.evt
Size (bytes)515,401,92093,859,200
Size491.5 MB 89.5 MB
Events in quadrant A3,087,142633,013
Events in quadrant B4,632,162619,813
Events in quadrant C2,775,628632,957
Events in quadrant D4,723,200553,396

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128882
B0175261
C0120151
D0179851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57691081.872075%
B57694968.597677%
C5769100.173340%
D57694567.904316%

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 7104 5770 42 42 0.59% 0.73%
B 7104 5770 325 325 4.57% 5.63%
C 7104 5770 2 2 0.03% 0.03%
D 7104 5770 450 450 6.33% 7.80%

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 15 223 138414 917.68 722 708 150.1
A 15 239 106109 702.4 722 708 150.1
A 15 255 16834 107.46 722 708 150.1
B 4 239 1733254 12776.39 713 702 135.6
B 0 219 75455 551.25 713 702 135.6
B 11 51 20397 145.24 713 702 135.6
C 4 254 23953 144.34 696 704 161.1
C 14 234 17308 103.09 696 704 161.1
C 4 175 16103 95.6 696 704 161.1
D 1 20 1702080 10504.38 663 646 162.0
D 2 16 208712 1284.57 663 646 162.0
D 12 233 104730 642.6 663 646 162.0

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