ASTROSAT CZTI

Data Quality Report

Orbit 21373

Creation date: 2024-06-27T18:27:00.588248
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/AS1A06_009T05_9000003154_21373cztM0_level2.evt modeM0/AS1A06_009T05_9000003154_21373cztM0_level2_quad_clean.evt
Size (bytes)414,296,64073,834,560
Size395.1 MB 70.4 MB
Events in quadrant A2,675,045470,349
Events in quadrant B2,717,677474,214
Events in quadrant C2,647,882457,049
Events in quadrant D4,121,423438,086

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115331
B0117171
C0116061
D0160941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5658190.335808%
B5658140.247437%
C5658470.830682%
D56582314.082715%

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 5658 5658 3 3 0.05% 0.05%
B 5658 5658 1 1 0.02% 0.02%
C 5658 5658 21 21 0.37% 0.37%
D 5658 5658 198 198 3.50% 3.50%

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 5 168 62772 459.64 669 655 135.1
A 5 16 26354 190.16 669 655 135.1
A 13 254 8270 56.35 669 655 135.1
B 0 230 27255 207.46 666 649 128.2
B 3 64 22722 172.11 666 649 128.2
B 0 190 21736 164.42 666 649 128.2
C 14 238 99383 656.1 634 637 150.5
C 14 128 67762 446.0 634 637 150.5
C 10 91 5606 33.01 634 637 150.5
D 1 52 1007004 6505.19 636 619 154.7
D 12 235 235360 1517.35 636 619 154.7
D 13 153 182753 1177.3 636 619 154.7

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