ASTROSAT CZTI

Data Quality Report

Orbit 13132

Creation date: 2024-06-27T16:36:44.049511
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/AS1G08_031T02_9000001934_13132cztM0_level2.evt modeM0/AS1G08_031T02_9000001934_13132cztM0_level2_quad_clean.evt
Size (bytes)324,446,40073,226,880
Size309.4 MB 69.8 MB
Events in quadrant A2,197,562479,815
Events in quadrant B3,172,219465,368
Events in quadrant C1,986,602478,773
Events in quadrant D2,148,507463,206

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A096540
B0125680
C094150
D098510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4702170.361548%
B47023637.720119%
C470210.021268%
D4702210.446618%

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 4703 4703 11 11 0.23% 0.23%
B 4703 4703 221 221 4.70% 4.70%
C 4703 4703 0 0 0.00% 0.00%
D 4703 4703 14 14 0.30% 0.30%

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 12 189 111709 1027.27 520 508 108.2
A 0 23 34852 317.27 520 508 108.2
A 4 2 26420 239.37 520 508 108.2
B 4 239 907168 9565.34 498 486 94.8
B 0 85 130207 1368.53 498 486 94.8
B 3 64 102333 1074.47 498 486 94.8
C 13 61 3822 28.09 507 508 118.0
C 12 4 3607 26.27 507 508 118.0
C 14 234 1694 10.05 507 508 118.0
D 1 52 150070 1221.06 505 490 122.5
D 14 34 33268 267.58 505 490 122.5
D 2 234 20025 159.47 505 490 122.5

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