ASTROSAT CZTI

Data Quality Report

Orbit 23623

Creation date: 2024-06-27T18:56:55.214271
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/AS1T03_178T01_9000003488_23623cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23623cztM0_level2_quad_clean.evt
Size (bytes)618,431,04093,242,880
Size589.8 MB 88.9 MB
Events in quadrant A3,209,689600,276
Events in quadrant B3,584,773624,797
Events in quadrant C3,415,638603,367
Events in quadrant D8,091,900554,547

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131572
B0143692
C0136652
D0283032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6308140.221940%
B6308701.109702%
C6308550.871909%
D6308143722.780596%

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 7673 6309 0 0 0.00% 0.00%
B 7673 6308 13 13 0.17% 0.21%
C 7673 6309 1 1 0.01% 0.02%
D 7673 6308 1397 1397 18.21% 22.15%

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 13 254 8483 46.62 833 818 164.4
A 0 226 7132 38.4 833 818 164.4
A 3 137 6916 37.09 833 818 164.4
B 3 64 171210 1085.53 846 828 157.0
B 0 189 61410 385.98 846 828 157.0
B 0 229 23295 143.14 846 828 157.0
C 14 238 132869 687.48 833 842 192.0
C 0 10 19403 96.65 833 842 192.0
C 7 247 9672 45.98 833 842 192.0
D 1 52 5192595 28535.56 758 739 181.9
D 2 234 21330 113.17 758 739 181.9
D 12 233 20049 106.13 758 739 181.9

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