ASTROSAT CZTI

Data Quality Report

Orbit 23103

Creation date: 2024-06-27T18:49:58.157061
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/AS1A07_138T05_9000003410_23103cztM0_level2.evt modeM0/AS1A07_138T05_9000003410_23103cztM0_level2_quad_clean.evt
Size (bytes)530,951,040101,260,800
Size506.4 MB 96.6 MB
Events in quadrant A4,339,312653,398
Events in quadrant B3,382,744683,751
Events in quadrant C3,847,660655,440
Events in quadrant D4,082,919634,263

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172492
B0140702
C0156142
D0163453

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63041482.347716%
B63041121.776650%
C63042333.696066%
D63031472.332223%

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 7569 6305 55 55 0.73% 0.87%
B 7569 6305 26 26 0.34% 0.41%
C 7569 6305 85 85 1.12% 1.35%
D 7568 6304 70 70 0.92% 1.11%

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 6 16 1227549 7547.69 808 792 162.5
A 13 254 9364 52.74 808 792 162.5
A 0 226 7042 38.45 808 792 162.5
B 14 207 70147 453.43 814 794 153.0
B 4 216 37980 243.12 814 794 153.0
B 0 190 28124 178.68 814 794 153.0
C 0 10 501804 2749.52 783 791 182.2
C 0 207 167095 912.66 783 791 182.2
C 14 238 123070 671.06 783 791 182.2
D 1 52 216714 1123.8 786 763 192.2
D 13 153 208396 1080.51 786 763 192.2
D 7 238 198187 1027.38 786 763 192.2

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