ASTROSAT CZTI

Data Quality Report

Orbit 10176

Creation date: 2024-06-27T15:55:59.089537
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/AS1A03_133T01_9000001464_10176cztM0_level2.evt modeM0/AS1A03_133T01_9000001464_10176cztM0_level2_quad_clean.evt
Size (bytes)399,775,68088,056,000
Size381.3 MB 84.0 MB
Events in quadrant A2,820,990581,487
Events in quadrant B2,945,146579,626
Events in quadrant C2,578,958568,582
Events in quadrant D3,379,009542,933

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118432
B0124981
C0115731
D0137581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5635721.277728%
B5635771.366460%
C5635340.603372%
D5635741.313221%

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 6890 5635 0 0 0.00% 0.00%
B 6890 5636 4 4 0.06% 0.07%
C 6890 5636 0 0 0.00% 0.00%
D 6890 5636 22 22 0.32% 0.39%

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 8 15 64713 453.51 696 683 141.2
A 15 174 53734 375.75 696 683 141.2
A 3 1 20172 138.04 696 683 141.2
B 0 214 85463 649.6 690 675 130.5
B 0 219 43310 326.64 690 675 130.5
B 4 81 42502 320.45 690 675 130.5
C 13 61 5105 29.18 660 667 152.1
C 14 67 2657 13.09 660 667 152.1
C 0 207 2564 12.47 660 667 152.1
D 1 52 238299 1489.06 663 644 159.6
D 2 16 191653 1196.79 663 644 159.6
D 7 71 172560 1077.16 663 644 159.6

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