ASTROSAT CZTI

Data Quality Report

Orbit 10965

Creation date: 2024-06-27T16:06:19.735447
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/AS1T01_193T01_9000001590_10965cztM0_level2.evt modeM0/AS1T01_193T01_9000001590_10965cztM0_level2_quad_clean.evt
Size (bytes)1,466,798,400286,375,680
Size1.4 GB 273.1 MB
Events in quadrant A12,002,7751,816,318
Events in quadrant B11,042,2251,874,075
Events in quadrant C8,000,0711,931,565
Events in quadrant D12,141,8361,790,708

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03722
D03720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04819155
B04528849
C03710331
D04908229

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1829710055.492704%
B182977223.946002%
C18298480.262324%
D183028244.502240%

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 20296 18312 751 751 3.70% 4.10%
B 20297 18315 422 422 2.08% 2.30%
C 20297 18314 1 1 0.00% 0.01%
D 20297 18315 779 779 3.84% 4.25%

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 4073270 9887.72 2032 1992 411.8
A 8 15 38960 89.78 2032 1992 411.8
A 8 6 19731 43.08 2032 1992 411.8
B 4 239 2464812 6239.29 2078 2027 394.7
B 0 214 148363 370.73 2078 2027 394.7
B 0 187 80052 197.67 2078 2027 394.7
C 13 61 15247 28.02 2050 2066 470.5
C 14 234 6241 8.87 2050 2066 470.5
C 8 222 5993 8.35 2050 2066 470.5
D 1 52 2921280 6044.39 2006 1952 483.0
D 5 222 622357 1284.53 2006 1952 483.0
D 10 253 298496 613.99 2006 1952 483.0

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