ASTROSAT CZTI

Data Quality Report

Orbit 06905

Creation date: 2024-06-27T15:12:55.065013
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/AS1A02_005T01_9000000948_06905cztM0_level2.evt modeM0/AS1A02_005T01_9000000948_06905cztM0_level2_quad_clean.evt
Size (bytes)457,986,24070,257,600
Size436.8 MB 67.0 MB
Events in quadrant A3,201,164420,855
Events in quadrant B3,348,514427,361
Events in quadrant C3,152,294425,689
Events in quadrant D3,736,805410,520

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135133
B0140782
C0133902
D0152452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6350891.401575%
B63501191.874016%
C6350871.370079%
D63501792.818898%

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 7600 6351 0 0 0.00% 0.00%
B 7600 6351 6 6 0.08% 0.09%
C 7600 6351 0 0 0.00% 0.00%
D 7600 6351 66 66 0.87% 1.04%

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 36863 219.55 811 794 164.3
A 13 14 26312 155.33 811 794 164.3
A 0 23 15244 87.96 811 794 164.3
B 4 81 60433 389.88 811 795 153.0
B 0 219 38317 245.3 811 795 153.0
B 4 48 28313 179.9 811 795 153.0
C 9 247 45425 243.89 793 798 183.0
C 13 61 6303 30.09 793 798 183.0
C 9 54 5929 28.04 793 798 183.0
D 2 216 331349 1744.6 790 767 189.5
D 2 152 168971 887.67 790 767 189.5
D 12 221 66513 346.97 790 767 189.5

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