ASTROSAT CZTI

Data Quality Report

Orbit 14432

Creation date: 2024-06-27T16:55:06.076647
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/AS1G08_025T01_9000002130_14432cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14432cztM0_level2_quad_clean.evt
Size (bytes)533,738,88091,598,400
Size509.0 MB 87.4 MB
Events in quadrant A3,147,746604,519
Events in quadrant B3,957,575591,160
Events in quadrant C3,322,504583,096
Events in quadrant D5,305,530551,560

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134763
B0158212
C0137882
D0202692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6359500.786287%
B63593004.717723%
C6359380.597578%
D63603906.132075%

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 7585 6361 0 0 0.00% 0.00%
B 7585 6360 185 185 2.44% 2.91%
C 7585 6361 0 0 0.00% 0.00%
D 7586 6362 302 302 3.98% 4.75%

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 8 15 53924 327.66 800 784 162.2
A 12 189 11143 63.87 800 784 162.2
A 0 226 7314 40.26 800 784 162.2
B 15 222 400451 2691.68 787 771 148.5
B 0 85 171641 1150.74 787 771 148.5
B 0 189 88261 589.21 787 771 148.5
C 3 233 327932 1854.4 768 773 176.4
C 13 61 5579 27.24 768 773 176.4
C 3 202 1812 5.89 768 773 176.4
D 13 122 1911528 10519.89 747 729 181.6
D 15 0 145517 797.13 747 729 181.6
D 2 120 129510 709.0 747 729 181.6

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