ASTROSAT CZTI

Data Quality Report

Orbit 10734

Creation date: 2024-06-27T16:03:04.242420
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_078T01_9000001546_10734cztM0_level2.evt modeM0/AS1A03_078T01_9000001546_10734cztM0_level2_quad_clean.evt
Size (bytes)529,099,20067,066,560
Size504.6 MB 64.0 MB
Events in quadrant A5,329,653388,227
Events in quadrant B4,024,708399,768
Events in quadrant C2,997,973396,781
Events in quadrant D3,218,570379,918

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201554
B0162101
C0135363
D0141621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66722303.447242%
B66732704.046156%
C6672510.764388%
D6673851.273790%

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 7528 6673 26 26 0.35% 0.39%
B 7528 6673 110 110 1.46% 1.65%
C 7528 6673 1 1 0.01% 0.01%
D 7528 6673 25 25 0.33% 0.37%

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 15 239 2184585 13636.26 785 765 160.1
A 14 254 47194 289.91 785 765 160.1
A 1 162 19799 118.85 785 765 160.1
B 4 239 747664 4890.15 785 766 152.7
B 0 219 79347 514.49 785 766 152.7
B 0 214 50386 324.88 785 766 152.7
C 14 234 15117 80.0 765 768 179.4
C 13 61 5558 26.7 765 768 179.4
C 3 202 1974 6.72 765 768 179.4
D 4 95 53903 288.76 762 739 184.1
D 13 249 51933 278.06 762 739 184.1
D 10 172 49917 267.11 762 739 184.1

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