ASTROSAT CZTI

Data Quality Report

Orbit 10221

Creation date: 2024-06-27T15:56:33.283344
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_099T01_9000001472_10221cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10221cztM0_level2_quad_clean.evt
Size (bytes)478,396,80091,457,280
Size456.2 MB 87.2 MB
Events in quadrant A3,685,425585,939
Events in quadrant B3,600,246585,679
Events in quadrant C2,997,572582,491
Events in quadrant D3,756,232554,841

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152472
B0149131
C0135471
D0154791

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66091151.740051%
B66091452.193978%
C6609300.453926%
D66091191.800575%

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 7419 6609 19 19 0.26% 0.29%
B 7419 6610 59 59 0.80% 0.89%
C 7419 6610 0 0 0.00% 0.00%
D 7419 6610 60 60 0.81% 0.91%

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 8 15 492507 3044.64 793 779 161.5
A 15 223 77492 474.98 793 779 161.5
A 15 239 37347 226.42 793 779 161.5
B 4 239 194258 1271.12 790 771 152.2
B 4 81 90775 591.28 790 771 152.2
B 11 51 70433 457.65 790 771 152.2
C 0 207 17176 92.94 761 765 176.6
C 4 175 6740 33.84 761 765 176.6
C 13 61 5825 28.66 761 765 176.6
D 1 52 345436 1881.86 761 743 183.2
D 8 195 282606 1538.84 761 743 183.2
D 2 33 82007 443.66 761 743 183.2

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