ASTROSAT CZTI

Data Quality Report

Orbit 33069

Creation date: 2024-06-27T20:44:37.482384
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/AS1A11_007T07_9000004758_33069cztM0_level2.evt modeM0/AS1A11_007T07_9000004758_33069cztM0_level2_quad_clean.evt
Size (bytes)324,095,04026,899,200
Size309.1 MB 25.7 MB
Events in quadrant A1,468,662154,565
Events in quadrant B1,847,413152,009
Events in quadrant C2,004,194154,849
Events in quadrant D4,271,235119,155

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065912
B075981
C082001
D0149691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A328620.060864%
B32861093.317103%
C3286812.465003%
D328654116.463786%

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 4629 3287 0 0 0.00% 0.00%
B 4629 3287 81 81 1.75% 2.46%
C 4629 3287 72 72 1.56% 2.19%
D 4629 3287 513 513 11.08% 15.61%

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 6080 72.44 378 371 78.8
A 3 137 3725 42.56 378 371 78.8
A 0 226 3250 36.53 378 371 78.8
B 5 172 317306 4300.02 373 364 73.7
B 0 189 19333 257.36 373 364 73.7
B 12 111 8960 116.62 373 364 73.7
C 0 207 464786 5425.77 364 367 85.6
C 0 10 74412 865.06 364 367 85.6
C 7 221 33301 384.77 364 367 85.6
D 7 223 2066479 23165.47 335 327 89.2
D 8 195 455473 5103.05 335 327 89.2
D 2 250 117564 1314.45 335 327 89.2

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