ASTROSAT CZTI

Data Quality Report

Orbit 07284

Creation date: 2024-06-27T15:17:58.347246
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_154T03_9000000996_07284cztM0_level2.evt modeM0/AS1G06_154T03_9000000996_07284cztM0_level2_quad_clean.evt
Size (bytes)490,083,84091,535,040
Size467.4 MB 87.3 MB
Events in quadrant A3,269,908568,684
Events in quadrant B3,355,063585,437
Events in quadrant C3,231,716577,462
Events in quadrant D4,501,412544,335

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146843
B0147772
C0146982
D0184442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71121962.755906%
B71121832.573116%
C71121281.799775%
D71125437.634983%

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 7232 7112 0 0 0.00% 0.00%
B 7232 7115 8 8 0.11% 0.11%
C 7232 7115 2 2 0.03% 0.03%
D 7232 7113 336 336 4.65% 4.72%

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 3 243 11686 62.8 839 821 173.0
A 14 111 10945 58.52 839 821 173.0
A 0 226 7994 41.46 839 821 173.0
B 0 214 37980 229.72 841 820 161.8
B 4 239 22724 135.41 841 820 161.8
B 4 81 19234 113.83 841 820 161.8
C 1 16 34946 180.22 815 818 189.4
C 10 22 6838 31.79 815 818 189.4
C 14 67 6795 31.56 815 818 189.4
D 2 216 910775 4647.79 793 767 195.8
D 2 14 217671 1107.82 793 767 195.8
D 13 105 204017 1038.08 793 767 195.8

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