ASTROSAT CZTI

Data Quality Report

Orbit 24133

Creation date: 2024-06-27T19:02:29.864479
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/AS1A07_069T01_9000003570_24133cztM0_level2.evt modeM0/AS1A07_069T01_9000003570_24133cztM0_level2_quad_clean.evt
Size (bytes)507,119,04099,204,480
Size483.6 MB 94.6 MB
Events in quadrant A3,569,639644,330
Events in quadrant B3,614,631648,159
Events in quadrant C3,593,565613,793
Events in quadrant D4,099,679605,371

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148661
B0149881
C0149781
D0164891

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70741892.671756%
B70742012.841391%
C70742323.279615%
D70742193.095844%

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 7330 7076 0 0 0.00% 0.00%
B 7330 7076 10 10 0.14% 0.14%
C 7330 7075 17 17 0.23% 0.24%
D 7330 7075 80 80 1.09% 1.13%

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 6 16 76513 412.5 901 880 183.4
A 2 250 12915 65.64 901 880 183.4
A 13 254 12149 61.46 901 880 183.4
B 0 229 57238 327.42 892 870 172.2
B 12 111 21023 117.06 892 870 172.2
B 0 189 19300 107.05 892 870 172.2
C 14 238 134167 668.85 852 856 199.3
C 0 239 68393 338.85 852 856 199.3
C 10 91 28080 136.59 852 856 199.3
D 1 52 341852 1593.8 873 849 214.0
D 8 195 306907 1430.47 873 849 214.0
D 7 238 66762 308.07 873 849 214.0

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