ASTROSAT CZTI

Data Quality Report

Orbit 20181214_T03_032T01_9000002564_level2

Creation date: 2018-12-15T09:47:32.162046
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1T03_032T01_9000002564cztM0_level2_bc.evt modeM0/AS1T03_032T01_9000002564cztM0_level2_quad_clean.evt
Size (bytes)491,486,400151,030,080
Size468.7 MB 144.0 MB
Events in quadrant A3,060,287943,814
Events in quadrant B3,096,283951,060
Events in quadrant C3,003,433904,815
Events in quadrant D4,835,559879,070

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280590
B0280950
C0284830
D0361090

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129501671.289575%
B129501751.351351%
C129502051.583012%
D129504793.698842%

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 15475 12949 0 0 0.00% 0.00%
B 15474 12949 0 0 0.00% 0.00%
C 15475 12950 0 0 0.00% 0.00%
D 15474 12948 18 18 0.12% 0.14%

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 6 16 11584 63.97 794 783 168.8
A 0 226 5319 26.87 794 783 168.8
A 12 194 5186 26.08 794 783 168.8
B 0 229 13048 84.06 797 782 145.9
B 0 182 11381 72.64 797 782 145.9
B 4 216 10288 65.15 797 782 145.9
C 3 233 65878 375.35 756 755 173.5
C 0 79 20722 115.08 756 755 173.5
C 5 238 7655 39.77 756 755 173.5
D 13 232 922636 5460.3 760 739 168.8
D 5 222 262770 1551.98 760 739 168.8
D 1 52 230738 1362.26 760 739 168.8

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