ASTROSAT CZTI

Data Quality Report

Orbit 08649

Creation date: 2024-06-27T15:35:26.048467
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/AS1G07_024T01_9000001206_08649cztM0_level2.evt modeM0/AS1G07_024T01_9000001206_08649cztM0_level2_quad_clean.evt
Size (bytes)383,760,00095,834,880
Size366.0 MB 91.4 MB
Events in quadrant A2,380,891633,318
Events in quadrant B2,730,091649,654
Events in quadrant C2,961,424624,643
Events in quadrant D3,172,166606,654

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111751
B0118140
C01284711
D0134389

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A554550.090171%
B5545621.118124%
C55401462.635379%
D5542550.992422%

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 5545 5545 4 4 0.07% 0.07%
B 5545 5545 36 36 0.65% 0.65%
C 5545 5545 124 124 2.24% 2.24%
D 5545 5545 49 49 0.88% 0.88%

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 15 174 21935 171.51 605 589 124.5
A 8 5 21474 167.8 605 589 124.5
A 5 16 7110 52.39 605 589 124.5
B 4 48 146762 1239.55 614 600 117.9
B 0 219 87096 733.54 614 600 117.9
B 0 228 40993 342.56 614 600 117.9
C 4 254 676081 4968.15 583 585 136.0
C 4 238 5692 37.56 583 585 136.0
C 13 61 4537 29.07 583 585 136.0
D 1 52 727540 5084.18 586 567 143.0
D 10 253 63053 437.0 586 567 143.0
D 7 71 38326 264.07 586 567 143.0

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