ASTROSAT CZTI

Data Quality Report

Orbit 13039

Creation date: 2024-06-27T16:35:21.086334
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/AS1A04_216T01_9000001916_13039cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13039cztM0_level2_quad_clean.evt
Size (bytes)498,461,760103,147,200
Size475.4 MB 98.4 MB
Events in quadrant A3,239,043676,045
Events in quadrant B4,487,622668,721
Events in quadrant C3,047,469687,445
Events in quadrant D3,878,890636,550

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137893
B0175772
C0133062
D0160142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6517120.184134%
B65174777.319319%
C651750.076722%
D65172523.866810%

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 7743 6519 0 0 0.00% 0.00%
B 7743 6519 347 347 4.48% 5.32%
C 7743 6519 0 0 0.00% 0.00%
D 7743 6519 199 199 2.57% 3.05%

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 12 189 99923 625.22 780 763 158.6
A 1 162 58582 364.56 780 763 158.6
A 1 178 23180 141.34 780 763 158.6
B 4 239 1102371 7813.53 761 742 141.0
B 0 85 197671 1396.76 761 742 141.0
B 3 64 107246 755.4 761 742 141.0
C 13 61 5760 27.93 780 785 178.1
C 8 222 3040 12.66 780 785 178.1
C 14 234 2651 10.48 780 785 178.1
D 1 52 605324 3370.88 750 730 179.4
D 14 34 323188 1797.85 750 730 179.4
D 8 195 69219 381.86 750 730 179.4

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