ASTROSAT CZTI

Data Quality Report

Orbit 08007

Creation date: 2024-06-27T15:26:44.942729
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/AS1G06_154T01_9000001100_08007cztM0_level2.evt modeM0/AS1G06_154T01_9000001100_08007cztM0_level2_quad_clean.evt
Size (bytes)486,014,40096,076,800
Size463.5 MB 91.6 MB
Events in quadrant A3,255,269598,153
Events in quadrant B3,412,984615,307
Events in quadrant C3,248,357616,155
Events in quadrant D4,316,443581,982

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147043
B0149732
C0147362
D0178502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7161861.200950%
B71611291.801424%
C7161590.823907%
D71612072.890658%

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 7651 7163 0 0 0.00% 0.00%
B 7651 7163 2 2 0.03% 0.03%
C 7651 7163 0 0 0.00% 0.00%
D 7651 7163 113 113 1.48% 1.58%

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 11884 64.34 839 821 171.9
A 13 251 10323 55.26 839 821 171.9
A 0 226 7810 40.65 839 821 171.9
B 5 250 59168 355.22 849 827 164.2
B 5 255 34635 205.84 849 827 164.2
B 12 111 19014 110.73 849 827 164.2
C 1 16 6827 30.95 828 830 193.7
C 13 61 6293 28.2 828 830 193.7
C 12 4 6110 27.25 828 830 193.7
D 1 52 639999 3248.21 810 788 196.8
D 1 83 314985 1596.62 810 788 196.8
D 2 14 120924 610.48 810 788 196.8

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