ASTROSAT CZTI

Data Quality Report

Orbit 05190

Creation date: 2024-06-27T14:52:26.256277
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_104T01_9000000656_05190cztM0_level2.evt modeM0/AS1G05_104T01_9000000656_05190cztM0_level2_quad_clean.evt
Size (bytes)1,224,155,520230,175,360
Size1.1 GB 219.5 MB
Events in quadrant A7,929,9401,460,332
Events in quadrant B8,560,7891,461,050
Events in quadrant C7,673,3391,476,387
Events in quadrant D11,727,2811,368,211

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03540
B03540
C03540
D03540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360843
B0372702
C0355782
D0472512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A174871781.017899%
B174871440.823469%
C17487690.394579%
D1748710756.147424%

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 19492 17490 52 52 0.27% 0.30%
B 19492 17490 16 16 0.08% 0.09%
C 19492 17490 2 2 0.01% 0.01%
D 19492 17490 833 833 4.27% 4.76%

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 0 50 242377 602.75 1965 1924 398.9
A 4 2 44085 105.69 1965 1924 398.9
A 0 247 39845 95.06 1965 1924 398.9
B 15 204 406474 1074.58 1985 1940 376.5
B 0 187 229078 603.35 1985 1940 376.5
B 4 48 94661 246.3 1985 1940 376.5
C 1 16 99991 223.08 1911 1920 439.6
C 12 4 49618 108.5 1911 1920 439.6
C 8 128 28110 59.57 1911 1920 439.6
D 2 33 1946330 4263.44 1863 1804 456.1
D 14 34 942559 2062.64 1863 1804 456.1
D 12 233 457191 998.45 1863 1804 456.1

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