ASTROSAT CZTI

Data Quality Report

Orbit 32814

Creation date: 2024-06-27T20:42:19.353846
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_044T01_9000004732_32814cztM0_level2.evt modeM0/AS1A11_044T01_9000004732_32814cztM0_level2_quad_clean.evt
Size (bytes)543,905,280115,038,720
Size518.7 MB 109.7 MB
Events in quadrant A2,623,040790,667
Events in quadrant B3,327,194803,517
Events in quadrant C3,057,776804,140
Events in quadrant D7,100,079708,907

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110073
B0131752
C0122072
D0249252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A538150.092920%
B53812254.181379%
C5381711.319457%
D538161311.391935%

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 7383 5382 0 0 0.00% 0.00%
B 7383 5382 138 138 1.87% 2.56%
C 7383 5382 58 58 0.79% 1.08%
D 7383 5382 560 560 7.58% 10.41%

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 9 143 20005 146.45 666 656 132.1
A 7 16 12148 86.98 666 656 132.1
A 13 254 10383 73.62 666 656 132.1
B 5 172 570268 4702.12 666 650 121.1
B 0 199 45080 366.76 666 650 121.1
B 0 230 36666 297.31 666 650 121.1
C 0 10 313272 2055.18 665 672 152.1
C 3 233 51428 333.69 665 672 152.1
C 14 67 50340 326.54 665 672 152.1
D 8 195 2701319 17351.88 634 620 155.6
D 12 6 901330 5787.02 634 620 155.6
D 2 250 242608 1554.76 634 620 155.6

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