ASTROSAT CZTI

Data Quality Report

Orbit 03537

Creation date: 2024-06-27T14:30:41.516711
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/AS1G05_045T01_9000000468_03537cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03537cztM0_level2_quad_clean.evt
Size (bytes)606,908,160101,404,800
Size578.8 MB 96.7 MB
Events in quadrant A4,125,336628,023
Events in quadrant B4,273,413635,449
Events in quadrant C5,578,288618,251
Events in quadrant D3,837,884609,802

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182962
B0186471
C0224221
D0179041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83292733.277704%
B83292172.605355%
C83293824.586385%
D83291271.524793%

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 8479 8329 87 87 1.03% 1.04%
B 8479 8329 3 3 0.04% 0.04%
C 8479 8330 258 258 3.04% 3.10%
D 8479 8331 36 36 0.42% 0.43%

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 0 50 324604 1624.06 963 936 199.3
A 8 15 42337 207.73 963 936 199.3
A 0 118 22629 108.85 963 936 199.3
B 15 204 332062 1722.23 985 961 192.3
B 14 167 45043 229.29 985 961 192.3
B 0 229 31925 161.06 985 961 192.3
C 4 248 1786686 8042.31 944 948 222.0
C 15 208 47794 210.98 944 948 222.0
C 9 54 45145 199.05 944 948 222.0
D 13 223 111532 486.93 939 910 227.2
D 12 110 51778 223.91 939 910 227.2
D 13 239 32337 138.33 939 910 227.2

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