ASTROSAT CZTI

Data Quality Report

Orbit 08886

Creation date: 2024-06-27T15:38:34.888217
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/AS1A03_092T01_9000001240_08886cztM0_level2.evt modeM0/AS1A03_092T01_9000001240_08886cztM0_level2_quad_clean.evt
Size (bytes)173,738,88031,150,080
Size165.7 MB 29.7 MB
Events in quadrant A1,359,115197,799
Events in quadrant B1,211,873200,358
Events in quadrant C1,193,765193,615
Events in quadrant D1,342,011188,796

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0554523
B0501225
C0496620
D0554236

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2252984.351687%
B2249944.179635%
C2251803.553976%
D2247853.782822%

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 3505 2260 8 8 0.23% 0.35%
B 3505 2260 0 0 0.00% 0.00%
C 3504 2259 0 0 0.00% 0.00%
D 3505 2259 4 4 0.11% 0.18%

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 8 5 113952 1739.81 313 306 65.3
A 15 174 28279 428.24 313 306 65.3
A 5 16 13024 194.7 313 306 65.3
B 12 111 6589 104.82 310 304 60.0
B 11 111 5327 83.77 310 304 60.0
B 14 111 4095 63.22 310 304 60.0
C 12 4 5179 68.64 304 305 71.0
C 13 61 2329 28.5 304 305 71.0
C 3 202 772 6.58 304 305 71.0
D 8 195 114045 1468.57 303 296 77.5
D 2 136 28621 365.69 303 296 77.5
D 2 14 26455 337.73 303 296 77.5

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