ASTROSAT CZTI

Data Quality Report

Orbit 07004

Creation date: 2024-06-27T15:14:20.264163
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/AS1T01_151T01_9000000960_07004cztM0_level2.evt modeM0/AS1T01_151T01_9000000960_07004cztM0_level2_quad_clean.evt
Size (bytes)438,102,72074,747,520
Size417.8 MB 71.3 MB
Events in quadrant A3,182,329462,243
Events in quadrant B3,255,125467,773
Events in quadrant C3,053,700452,991
Events in quadrant D3,344,478436,663

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133773
B0135412
C0131712
D0138962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6362721.131720%
B6362781.226030%
C6362510.801635%
D6362861.351776%

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 7632 6363 2 2 0.03% 0.03%
B 7632 6363 0 0 0.00% 0.00%
C 7632 6363 0 0 0.00% 0.00%
D 7632 6363 45 45 0.59% 0.71%

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 15 234 25758 152.44 817 802 163.7
A 13 14 10297 58.0 817 802 163.7
A 0 226 8054 44.3 817 802 163.7
B 0 214 24606 153.98 821 804 154.6
B 4 239 22687 141.57 821 804 154.6
B 12 111 15521 95.21 821 804 154.6
C 13 61 6205 30.22 780 785 179.3
C 1 16 5827 28.11 780 785 179.3
C 14 128 2305 8.48 780 785 179.3
D 14 34 159115 830.14 784 760 190.8
D 8 195 158641 827.66 784 760 190.8
D 2 14 30791 157.43 784 760 190.8

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