ASTROSAT CZTI

Data Quality Report

Orbit 28585

Creation date: 2024-06-27T19:53:39.355922
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/AS1A10_102T03_9000004106_28585cztM0_level2.evt modeM0/AS1A10_102T03_9000004106_28585cztM0_level2_quad_clean.evt
Size (bytes)495,855,36075,827,520
Size472.9 MB 72.3 MB
Events in quadrant A2,994,386480,235
Events in quadrant B3,031,094486,686
Events in quadrant C3,032,751467,204
Events in quadrant D5,556,278447,278

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124891
B0125471
C0125321
D0206201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5936560.943396%
B5937530.892707%
C5937871.465387%
D59375198.741789%

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 7036 5936 0 0 0.00% 0.00%
B 7037 5937 1 1 0.01% 0.02%
C 7037 5937 0 0 0.00% 0.00%
D 7037 5937 429 429 6.10% 7.23%

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 13 254 8181 47.54 773 758 156.2
A 15 47 7573 43.64 773 758 156.2
A 3 137 7365 42.31 773 758 156.2
B 4 171 30841 208.84 757 739 144.1
B 12 111 17476 116.12 757 739 144.1
B 11 111 16454 109.03 757 739 144.1
C 14 238 121978 700.93 738 742 173.0
C 7 247 18034 99.97 738 742 173.0
C 0 10 14664 80.49 738 742 173.0
D 1 52 1771209 10150.49 729 711 174.4
D 8 195 703001 4026.32 729 711 174.4
D 7 80 299293 1711.81 729 711 174.4

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