ASTROSAT CZTI

Data Quality Report

Orbit 38308

Creation date: 2024-06-27T21:51:05.781901
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/AS1C07_001T12_9000005372_38308cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38308cztM0_level2_quad_clean.evt
Size (bytes)526,536,00099,296,640
Size502.1 MB 94.7 MB
Events in quadrant A3,471,569705,857
Events in quadrant B3,327,065712,464
Events in quadrant C2,980,655697,400
Events in quadrant D9,217,416446,807

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142943
B0142652
C0128972
D0318162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6358180.283108%
B6358951.494181%
C635830.047185%
D6358207132.573136%

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 9043 6360 7 7 0.08% 0.11%
B 9043 6360 53 53 0.59% 0.83%
C 9043 6360 0 0 0.00% 0.00%
D 9043 6360 1897 1897 20.98% 29.83%

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 10 83 449024 3167.7 703 688 141.5
A 13 248 235830 1661.39 703 688 141.5
A 12 189 58093 405.59 703 688 141.5
B 5 172 280924 2086.59 699 680 134.3
B 0 229 120704 893.65 699 680 134.3
B 0 183 91265 674.46 699 680 134.3
C 15 214 271749 1675.04 691 694 161.8
C 14 67 7196 40.18 691 694 161.8
C 13 61 4708 24.81 691 694 161.8
D 10 203 3839562 26527.94 592 575 144.7
D 2 16 1885677 13026.32 592 575 144.7
D 12 235 709290 4897.32 592 575 144.7

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