ASTROSAT CZTI

Data Quality Report

Orbit 01205

Creation date: 2024-06-27T14:09:07.390108
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/AS1G04_007T02_9000000220_01205cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01205cztM0_level2_quad_clean.evt
Size (bytes)1,276,790,400114,549,120
Size1.2 GB 109.2 MB
Events in quadrant A9,351,706758,892
Events in quadrant B9,701,420752,771
Events in quadrant C9,309,509724,339
Events in quadrant D9,795,515697,558

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0332201
B0342940
C0331100
D0346470

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A770290.116853%
B770240.051935%
C770250.064918%
D77024025.219424%

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 7702 7702 331 331 4.30% 4.30%
B 7702 7702 317 317 4.12% 4.12%
C 7702 7702 278 278 3.61% 3.61%
D 7702 7702 758 758 9.84% 9.84%

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 12 243 19231 28.67 2430 2447 585.5
A 11 79 11999 16.31 2430 2447 585.5
A 3 111 7390 8.44 2430 2447 585.5
B 15 22 91569 150.82 2483 2496 590.6
B 7 221 30923 48.13 2483 2496 590.6
B 6 53 30554 47.51 2483 2496 590.6
C 15 241 411526 653.21 2250 2331 626.4
C 3 79 56497 86.47 2250 2331 626.4
C 3 111 42440 64.03 2250 2331 626.4
D 13 70 1158889 1711.88 2178 2263 675.6
D 1 83 296509 435.5 2178 2263 675.6
D 13 205 44013 61.79 2178 2263 675.6

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