ASTROSAT CZTI

Data Quality Report

Orbit 12234

Creation date: 2024-06-27T16:24:13.220675
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/AS1C03_014T03_9000001808_12234cztM0_level2.evt modeM0/AS1C03_014T03_9000001808_12234cztM0_level2_quad_clean.evt
Size (bytes)365,158,08081,460,800
Size348.2 MB 77.7 MB
Events in quadrant A3,746,921536,391
Events in quadrant B2,557,307549,139
Events in quadrant C2,059,706546,645
Events in quadrant D2,395,723525,317

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142412
B0104291
C090741
D0101471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43953127.098976%
B43952245.096701%
C4395130.295791%
D4395821.865757%

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 4811 4397 76 76 1.58% 1.73%
B 4811 4396 70 70 1.45% 1.59%
C 4811 4397 1 1 0.02% 0.02%
D 4811 4397 57 57 1.18% 1.30%

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 13 251 1298866 11954.25 519 507 108.6
A 1 162 98541 902.62 519 507 108.6
A 15 174 77949 713.02 519 507 108.6
B 4 239 328978 3319.59 520 506 98.9
B 10 246 80889 812.36 520 506 98.9
B 11 51 26399 261.67 520 506 98.9
C 4 175 25144 207.21 512 513 118.9
C 15 208 20259 166.12 512 513 118.9
C 0 207 9008 71.47 512 513 118.9
D 1 52 212983 1704.84 510 493 124.6
D 13 249 65372 520.53 510 493 124.6
D 2 33 41207 326.66 510 493 124.6

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