ASTROSAT CZTI

Data Quality Report

Orbit 18613

Creation date: 2024-06-27T17:52:17.652269
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/AS1A05_082T10_9000002774_18613cztM0_level2.evt modeM0/AS1A05_082T10_9000002774_18613cztM0_level2_quad_clean.evt
Size (bytes)269,406,72054,391,680
Size256.9 MB 51.9 MB
Events in quadrant A2,036,663348,025
Events in quadrant B1,879,923360,737
Events in quadrant C2,131,830348,717
Events in quadrant D1,876,499346,545

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084081
B078581
C086391
D079091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A34281043.033839%
B3428621.808635%
C34281333.879813%
D3428521.516919%

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 4768 3429 32 32 0.67% 0.93%
B 4768 3429 0 0 0.00% 0.00%
C 4768 3428 47 47 0.99% 1.37%
D 4768 3429 9 9 0.19% 0.26%

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 0 13 184773 1920.18 475 468 96.0
A 9 143 10462 104.12 475 468 96.0
A 12 236 6566 63.53 475 468 96.0
B 12 111 10461 108.91 479 469 91.7
B 11 111 9044 93.46 479 469 91.7
B 14 111 8058 82.72 479 469 91.7
C 9 54 237313 2166.83 466 471 109.3
C 14 238 73928 672.05 466 471 109.3
C 3 233 5298 44.16 466 471 109.3
D 1 52 26486 224.42 473 460 116.0
D 7 96 21467 181.14 473 460 116.0
D 5 222 18575 156.2 473 460 116.0

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