ASTROSAT CZTI

Data Quality Report

Orbit 33588

Creation date: 2024-06-27T20:50:30.173131
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/AS1A11_060T01_9000004808_33588cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33588cztM0_level2_quad_clean.evt
Size (bytes)656,830,08070,470,720
Size626.4 MB 67.2 MB
Events in quadrant A7,187,479426,584
Events in quadrant B4,355,795422,929
Events in quadrant C3,644,996435,475
Events in quadrant D4,291,011421,480

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257853
B0168002
C0143622
D0168872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A611173612.043855%
B61114988.149239%
C6111971.587302%
D61111732.830961%

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 8797 6113 556 556 6.32% 9.10%
B 8797 6112 371 371 4.22% 6.07%
C 8797 6113 82 82 0.93% 1.34%
D 8796 6112 152 152 1.73% 2.49%

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 15 169 4517361 32680.07 687 673 138.2
A 13 254 10326 69.84 687 673 138.2
A 3 137 7046 46.11 687 673 138.2
B 5 172 739210 5575.58 687 669 132.5
B 5 255 347823 2620.82 687 669 132.5
B 15 222 296372 2232.4 687 669 132.5
C 3 233 447831 2766.23 691 698 161.6
C 15 214 259831 1603.15 691 698 161.6
C 0 10 217612 1341.96 691 698 161.6
D 8 195 745684 4484.4 684 666 166.1
D 13 249 367758 2209.59 684 666 166.1
D 7 80 175095 1049.92 684 666 166.1

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