ASTROSAT CZTI

Data Quality Report

Orbit 30399

Creation date: 2024-06-27T20:14:44.820990
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/AS1A10_053T20_9000004372_30399cztM0_level2.evt modeM0/AS1A10_053T20_9000004372_30399cztM0_level2_quad_clean.evt
Size (bytes)538,416,00086,077,440
Size513.5 MB 82.1 MB
Events in quadrant A3,353,221553,318
Events in quadrant B5,302,362555,234
Events in quadrant C3,521,282528,478
Events in quadrant D3,699,547527,230

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137753
B0196162
C0141482
D0149632

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63401061.671924%
B63402003.154574%
C63402033.201893%
D63402063.249211%

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 7560 6340 2 2 0.03% 0.03%
B 7560 6340 16 16 0.21% 0.25%
C 7560 6340 1 1 0.01% 0.02%
D 7560 6340 140 140 1.85% 2.21%

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 8 192 25292 143.2 860 844 170.7
A 13 254 12302 67.11 860 844 170.7
A 11 242 8502 44.85 860 844 170.7
B 6 159 1810499 11230.23 849 828 161.1
B 0 229 79767 489.87 849 828 161.1
B 5 172 71437 438.18 849 828 161.1
C 14 238 169262 891.02 818 825 189.0
C 10 22 72907 381.31 818 825 189.0
C 14 254 52361 272.62 818 825 189.0
D 13 104 480762 2484.18 822 801 193.2
D 8 195 37933 192.19 822 801 193.2
D 13 249 37174 188.26 822 801 193.2

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