ASTROSAT CZTI

Data Quality Report

Orbit 06707

Creation date: 2024-06-27T15:10:39.202258
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/AS1G06_135T02_9000000918_06707cztM0_level2.evt modeM0/AS1G06_135T02_9000000918_06707cztM0_level2_quad_clean.evt
Size (bytes)253,644,48025,660,800
Size241.9 MB 24.5 MB
Events in quadrant A1,978,360139,785
Events in quadrant B1,462,771142,576
Events in quadrant C1,344,351139,893
Events in quadrant D2,670,348120,066

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082371
B067190
C065880
D0103890

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32951695.128983%
B329530.091047%
C329520.060698%
D329543613.232170%

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 3295 3295 50 50 1.52% 1.52%
B 3295 3295 1 1 0.03% 0.03%
C 3295 3295 0 0 0.00% 0.00%
D 3295 3295 349 349 10.59% 10.59%

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 14 111 578945 7964.84 350 343 72.6
A 8 15 49789 680.66 350 343 72.6
A 0 226 3246 39.96 350 343 72.6
B 0 214 47201 665.15 356 348 70.4
B 11 51 15257 211.65 356 348 70.4
B 4 173 8081 109.78 356 348 70.4
C 8 128 6742 79.21 340 340 80.8
C 8 112 3848 43.4 340 340 80.8
C 13 61 2824 30.73 340 340 80.8
D 2 33 1205729 14685.33 325 315 82.1
D 8 195 171824 2089.46 325 315 82.1
D 2 152 21542 258.6 325 315 82.1

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