ASTROSAT CZTI

Data Quality Report

Orbit 04822

Creation date: 2024-06-27T14:47:30.720183
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/AS1G05_144T01_9000000612_04822cztM0_level2.evt modeM0/AS1G05_144T01_9000000612_04822cztM0_level2_quad_clean.evt
Size (bytes)493,015,68081,360,000
Size470.2 MB 77.6 MB
Events in quadrant A3,287,381502,521
Events in quadrant B3,884,097503,819
Events in quadrant C3,076,044506,547
Events in quadrant D4,221,926477,115

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146074
B0160613
C0141433
D0173833

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68021311.925904%
B68021341.970009%
C6802390.573361%
D68021992.925610%

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 8892 6805 23 23 0.26% 0.34%
B 8892 6805 47 47 0.53% 0.69%
C 8892 6805 0 0 0.00% 0.00%
D 8892 6805 148 148 1.66% 2.17%

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 13 251 123433 756.87 788 771 162.1
A 0 50 55796 339.53 788 771 162.1
A 0 149 33434 201.54 788 771 162.1
B 4 80 284677 1824.41 804 785 155.6
B 10 16 252156 1615.42 804 785 155.6
B 15 204 94725 603.7 804 785 155.6
C 8 208 33872 184.17 768 771 179.7
C 9 247 25379 136.92 768 771 179.7
C 12 4 11821 61.48 768 771 179.7
D 13 235 321426 1753.05 754 732 182.9
D 2 136 288639 1573.83 754 732 182.9
D 5 239 270589 1475.16 754 732 182.9

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