ASTROSAT CZTI

Data Quality Report

Orbit 39329

Creation date: 2024-06-27T22:03:17.673800
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/AS1A12_061T07_9000005468_39329cztM0_level2.fits modeM0/AS1A12_061T07_9000005468_39329cztM0_level2_quad_clean.evt
Size (bytes)398,623,68096,811,200
Size380.2 MB 92.3 MB
Events in quadrant A2,913,955668,453
Events in quadrant B3,240,408666,508
Events in quadrant C3,027,842645,979
Events in quadrant D5,162,622580,214

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117872
B0129021
C0122471
D0190971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A529090.170132%
B52901963.705104%
C5290220.415879%
D52902134.026465%

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 7203 5291 7 7 0.10% 0.13%
B 7203 5291 173 173 2.40% 3.27%
C 7203 5291 13 13 0.18% 0.25%
D 7203 5291 192 192 2.67% 3.63%

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 413281 3256.09 629 618 126.7
A 13 248 55279 431.3 629 618 126.7
A 13 254 8532 62.44 629 618 126.7
B 5 255 596708 5008.65 619 602 119.0
B 5 172 150265 1257.51 619 602 119.0
B 0 213 44951 372.63 619 602 119.0
C 15 214 243439 1675.22 621 627 144.9
C 9 187 243333 1674.49 621 627 144.9
C 14 254 58169 397.0 621 627 144.9
D 12 235 2403334 16300.55 605 591 147.4
D 2 16 148611 1004.19 605 591 147.4
D 13 249 119690 807.98 605 591 147.4

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