ASTROSAT CZTI

Data Quality Report

Orbit 13362

Creation date: 2024-06-27T16:39:40.582949
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_082T01_9000001986_13362cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13362cztM0_level2_quad_clean.evt
Size (bytes)466,171,200100,209,600
Size444.6 MB 95.6 MB
Events in quadrant A3,284,961644,831
Events in quadrant B3,330,036666,081
Events in quadrant C3,299,989642,998
Events in quadrant D3,737,215603,275

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143863
B0144252
C0143192
D0157442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6852340.496205%
B6852420.612960%
C6852100.145943%
D6852711.036194%

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 7778 6854 13 13 0.17% 0.19%
B 7778 6854 8 8 0.10% 0.12%
C 7778 6854 4 4 0.05% 0.06%
D 7778 6854 57 57 0.73% 0.83%

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 9 143 82634 495.6 819 801 165.1
A 8 15 22108 129.04 819 801 165.1
A 1 162 13242 75.35 819 801 165.1
B 4 142 31294 193.27 828 807 157.7
B 15 201 24108 147.72 828 807 157.7
B 4 173 21058 128.38 828 807 157.7
C 14 220 100613 539.29 800 806 185.1
C 3 233 79218 423.69 800 806 185.1
C 13 61 5665 26.25 800 806 185.1
D 5 222 215872 1148.66 782 761 187.3
D 1 52 143243 760.83 782 761 187.3
D 8 195 118174 626.97 782 761 187.3

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