ASTROSAT CZTI

Data Quality Report

Orbit 16384

Creation date: 2024-06-27T17:21:54.859364
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/AS1A05_069T05_9000002420_16384cztM0_level2.evt modeM0/AS1A05_069T05_9000002420_16384cztM0_level2_quad_clean.evt
Size (bytes)476,112,96079,162,560
Size454.1 MB 75.5 MB
Events in quadrant A3,281,985506,159
Events in quadrant B3,487,730524,421
Events in quadrant C3,128,796490,498
Events in quadrant D4,103,657447,104

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135353
B0142532
C0129712
D0163382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6138711.156729%
B6138520.847181%
C6138480.782014%
D61383505.702183%

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 7479 6139 34 34 0.45% 0.55%
B 7479 6139 6 6 0.08% 0.10%
C 7479 6140 0 0 0.00% 0.00%
D 7479 6140 272 272 3.64% 4.43%

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 15 174 232811 1466.38 789 775 158.2
A 15 223 11080 65.12 789 775 158.2
A 0 226 7144 40.25 789 775 158.2
B 15 35 103504 691.68 802 785 148.5
B 0 189 61931 411.74 802 785 148.5
B 10 16 55270 366.89 802 785 148.5
C 14 238 116874 654.13 761 766 177.5
C 3 233 34962 192.65 761 766 177.5
C 10 169 6914 34.64 761 766 177.5
D 2 122 1156340 6373.18 742 722 181.3
D 12 218 69781 380.86 742 722 181.3
D 1 52 22793 121.72 742 722 181.3

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