ASTROSAT CZTI

Data Quality Report

Orbit 43037

Creation date: 2024-06-27T22:47:12.165119
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/AS1T05_148T01_9000005838_43037cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43037cztM0_level2_quad_clean.evt
Size (bytes)458,075,520107,435,520
Size436.9 MB 102.5 MB
Events in quadrant A3,397,153796,949
Events in quadrant B5,277,202699,591
Events in quadrant C2,874,988768,877
Events in quadrant D4,995,048616,828

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135752
B0191222
C0115272
D0182852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5304370.697587%
B530487016.402715%
C530490.169683%
D530469013.009050%

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 7156 5305 19 19 0.27% 0.36%
B 7156 5305 763 763 10.66% 14.38%
C 7156 5305 7 7 0.10% 0.13%
D 7156 5305 586 586 8.19% 11.05%

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 10 83 595193 4054.37 673 663 146.6
A 12 189 119587 811.0 673 663 146.6
A 15 237 81382 550.46 673 663 146.6
B 0 186 1561631 11760.3 635 623 132.7
B 5 255 1065450 8022.18 635 623 132.7
B 0 189 93544 700.05 635 623 132.7
C 15 214 238071 1459.9 649 657 162.6
C 0 207 96890 591.75 649 657 162.6
C 14 254 6431 35.51 649 657 162.6
D 1 52 2152275 13698.37 605 588 157.1
D 13 249 364816 2318.8 605 588 157.1
D 1 47 68288 431.0 605 588 157.1

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