ASTROSAT CZTI

Data Quality Report

Orbit 04044

Creation date: 2024-06-27T14:36:42.849690
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/AS1G05_246T03_9000000516_04044cztM0_level2.evt modeM0/AS1G05_246T03_9000000516_04044cztM0_level2_quad_clean.evt
Size (bytes)279,135,36031,749,120
Size266.2 MB 30.3 MB
Events in quadrant A2,763,441171,188
Events in quadrant B1,865,393178,585
Events in quadrant C1,723,996175,715
Events in quadrant D1,844,970171,018

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010936159
B0817445
C0800046
D0840470

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0762
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A373239510.584137%
B37472857.606085%
C37452055.473965%
D37352306.157965%

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 3822 3766 75 75 1.96% 1.99%
B 3822 3767 9 9 0.24% 0.24%
C 3822 3766 0 0 0.00% 0.00%
D 3822 3767 14 14 0.37% 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 8 15 613733 6673.04 433 421 91.9
A 0 199 207323 2251.16 433 421 91.9
A 0 118 141035 1529.92 433 421 91.9
B 15 204 37964 427.56 444 431 87.8
B 10 246 37127 418.02 444 431 87.8
B 14 167 24518 274.39 444 431 87.8
C 9 144 18768 181.46 429 429 101.1
C 8 128 12759 122.0 429 429 101.1
C 8 112 5402 49.21 429 429 101.1
D 13 239 63058 593.59 429 413 105.5
D 2 63 62716 590.35 429 413 105.5
D 10 246 44236 415.25 429 413 105.5

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