ASTROSAT CZTI

Data Quality Report

Orbit 33073

Creation date: 2024-06-27T20:44:39.837756
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_007T07_9000004758_33073cztM0_level2.evt modeM0/AS1A11_007T07_9000004758_33073cztM0_level2_quad_clean.evt
Size (bytes)734,797,44086,639,040
Size700.8 MB 82.6 MB
Events in quadrant A2,691,868642,681
Events in quadrant B4,344,482599,381
Events in quadrant C3,856,206617,496
Events in quadrant D10,984,693372,916

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114503
B0164482
C0149622
D0364932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A557390.161493%
B55735249.402476%
C55732634.719182%
D5573310355.679167%

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 9039 5575 0 0 0.00% 0.00%
B 9039 5575 390 390 4.31% 7.00%
C 9039 5575 196 196 2.17% 3.52%
D 9039 5575 2909 2909 32.18% 52.18%

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 13 254 9871 65.88 695 682 139.5
A 3 137 6139 39.12 695 682 139.5
A 0 226 6042 38.43 695 682 139.5
B 5 172 983503 7904.15 653 638 124.3
B 5 200 414203 3325.87 653 638 124.3
B 0 190 164863 1320.69 653 638 124.3
C 8 111 714748 4722.59 657 663 151.2
C 7 221 258573 1705.68 657 663 151.2
C 0 10 235860 1555.47 657 663 151.2
D 7 223 6105843 46459.35 494 484 131.4
D 12 218 1364318 10378.23 494 484 131.4
D 2 250 589115 4479.25 494 484 131.4

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