ASTROSAT CZTI

Data Quality Report

Orbit 07538

Creation date: 2024-06-27T15:20:58.530844
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/AS1G06_076T01_9000001038_07538cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07538cztM0_level2_quad_clean.evt
Size (bytes)397,820,16077,287,680
Size379.4 MB 73.7 MB
Events in quadrant A2,867,858487,691
Events in quadrant B2,885,850494,775
Events in quadrant C2,789,008479,543
Events in quadrant D3,097,912460,157

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125292
B0124471
C0123631
D0132781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5985691.152882%
B5985570.952381%
C5985530.885547%
D5985841.403509%

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 7115 5985 2 2 0.03% 0.03%
B 7115 5985 1 1 0.01% 0.02%
C 7115 5985 0 0 0.00% 0.00%
D 7115 5985 27 27 0.38% 0.45%

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 14 111 45129 298.14 732 716 149.0
A 13 14 8721 53.74 732 716 149.0
A 0 226 6773 40.66 732 716 149.0
B 4 81 32136 226.82 732 715 138.5
B 12 111 13945 95.51 732 715 138.5
B 11 111 11287 76.32 732 715 138.5
C 8 229 6467 34.83 713 716 165.1
C 13 61 5587 29.5 713 716 165.1
C 8 222 2876 13.08 713 716 165.1
D 2 136 164972 944.77 711 690 173.9
D 2 152 102620 586.19 711 690 173.9
D 2 14 93615 534.41 711 690 173.9

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