ASTROSAT CZTI

Data Quality Report

Orbit 29598

Creation date: 2024-06-27T20:05:52.578142
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/AS1T03_286T01_9000004268_29598cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29598cztM0_level2_quad_clean.evt
Size (bytes)472,032,000111,309,120
Size450.2 MB 106.2 MB
Events in quadrant A2,949,578747,305
Events in quadrant B3,048,787766,354
Events in quadrant C3,145,475726,706
Events in quadrant D4,727,013694,492

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129981
B0132841
C0134801
D0184191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6246380.608389%
B6247500.800384%
C62472433.889867%
D62473565.698735%

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 7316 6246 0 0 0.00% 0.00%
B 7317 6247 4 4 0.05% 0.06%
C 7317 6247 0 0 0.00% 0.00%
D 7317 6247 271 271 3.70% 4.34%

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 11898 73.35 762 747 152.0
A 3 137 7317 43.22 762 747 152.0
A 0 226 6426 37.36 762 747 152.0
B 0 190 52412 358.27 762 742 144.2
B 12 111 17667 117.35 762 742 144.2
B 11 111 15904 105.13 762 742 144.2
C 14 238 159498 927.81 734 737 171.1
C 14 254 60021 346.46 734 737 171.1
C 3 233 27159 154.41 734 737 171.1
D 7 80 742007 4228.07 733 714 175.3
D 7 238 549744 3131.47 733 714 175.3
D 8 195 399153 2272.56 733 714 175.3

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