ASTROSAT CZTI

Data Quality Report

Orbit 09859

Creation date: 2024-06-27T15:51:32.288982
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/AS1A03_117T06_9000001404_09859cztM0_level2.evt modeM0/AS1A03_117T06_9000001404_09859cztM0_level2_quad_clean.evt
Size (bytes)178,346,88035,668,800
Size170.1 MB 34.0 MB
Events in quadrant A1,270,808223,664
Events in quadrant B1,330,956227,425
Events in quadrant C1,348,404215,583
Events in quadrant D1,264,704220,225

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093
B091
C092
D093

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133247767
B0137438095
C01587810139
D0134557805

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013276
B013385
C013474
D013480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2713210.774051%
B2674542.019447%
C2593361.388353%
D273480.292612%

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 7562 3634 0 0 0.00% 0.00%
B 7562 3552 8 8 0.11% 0.23%
C 7558 3478 5 5 0.07% 0.14%
D 7561 3653 1 1 0.01% 0.03%

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 0 226 3060 39.82 330 323 68.7
A 12 194 2611 33.28 330 323 68.7
A 8 4 1707 20.13 330 323 68.7
B 4 81 53596 829.15 322 315 64.3
B 0 229 21541 330.32 322 315 64.3
B 12 111 7378 109.91 322 315 64.3
C 4 254 134852 1834.55 306 307 73.3
C 14 234 16325 218.41 306 307 73.3
C 13 61 2329 27.57 306 307 73.3
D 10 172 22649 263.76 320 313 84.7
D 2 234 11022 126.46 320 313 84.7
D 1 52 8198 93.11 320 313 84.7

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