ASTROSAT CZTI

Data Quality Report

Orbit 10552

Creation date: 2024-06-27T16:00:36.389572
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_107T01_9000001530_10552cztM0_level2.evt modeM0/AS1A03_107T01_9000001530_10552cztM0_level2_quad_clean.evt
Size (bytes)1,821,885,120284,411,520
Size1.7 GB 271.2 MB
Events in quadrant A11,576,5561,769,180
Events in quadrant B15,761,3671,694,024
Events in quadrant C11,234,9921,765,650
Events in quadrant D14,931,3801,682,368

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0670154
B0670157
C0670152
D0659142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07918
B08625
C08625
D07918

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06667115746
B08780825338
C06693616586
D07632015919

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A246901450.587282%
B2400612135.052903%
C24706890.360236%
D255382601.018091%

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 31981 25655 9 9 0.03% 0.04%
B 31981 25055 820 820 2.56% 3.27%
C 31980 25645 1 1 0.00% 0.00%
D 31981 25814 177 177 0.55% 0.69%

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 13 251 79471 129.93 2935 2882 589.4
A 1 162 68862 111.94 2935 2882 589.4
A 15 174 59836 96.62 2935 2882 589.4
B 4 239 4121321 7723.77 2844 2780 533.2
B 11 51 222427 411.92 2844 2780 533.2
B 0 214 125624 230.38 2844 2780 533.2
C 4 175 26581 35.89 2864 2886 660.3
C 3 254 25959 34.94 2864 2886 660.3
C 13 61 21221 27.77 2864 2886 660.3
D 8 195 1618474 2317.34 2896 2818 697.2
D 1 52 1184919 1695.49 2896 2818 697.2
D 2 16 670366 957.47 2896 2818 697.2

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