ASTROSAT CZTI

Data Quality Report

Orbit 01330

Creation date: 2024-06-27T14:11:04.454438
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/AS1G04_002T02_9000000230_01330cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01330cztM0_level2_quad_clean.evt
Size (bytes)1,070,179,20098,075,520
Size1020.6 MB 93.5 MB
Events in quadrant A7,452,952643,976
Events in quadrant B8,523,734655,677
Events in quadrant C7,583,572645,427
Events in quadrant D8,438,467590,931

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266133
B0297302
C0269752
D0295582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6219460.739669%
B6219570.916546%
C6219130.209037%
D62195789.294099%

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 7464 6220 238 238 3.19% 3.83%
B 7464 6220 536 536 7.18% 8.62%
C 7464 6220 242 242 3.24% 3.89%
D 7464 6219 959 959 12.85% 15.42%

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 4 32 284575 635.17 1854 1868 445.1
A 8 14 14840 29.14 1854 1868 445.1
A 8 15 12774 24.5 1854 1868 445.1
B 8 4 755828 1646.48 1969 1975 457.9
B 12 52 116973 251.17 1969 1975 457.9
B 6 53 60410 127.63 1969 1975 457.9
C 15 241 304146 608.79 1792 1854 496.5
C 3 9 163615 325.77 1792 1854 496.5
C 9 52 58561 114.2 1792 1854 496.5
D 10 84 2225891 4450.39 1626 1682 499.8
D 15 13 38435 73.54 1626 1682 499.8
D 1 83 28186 53.03 1626 1682 499.8

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