ASTROSAT CZTI

Data Quality Report

Orbit 29301

Creation date: 2024-06-27T20:02:33.017127
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/AS1A10_050T01_9000004212_29301cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29301cztM0_level2_quad_clean.evt
Size (bytes)957,096,00077,166,720
Size912.8 MB 73.6 MB
Events in quadrant A3,655,029483,080
Events in quadrant B4,208,594480,820
Events in quadrant C13,752,648405,275
Events in quadrant D6,871,371452,467

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154232
B0170202
C0459402
D0254222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73841341.814735%
B73842353.182557%
C7384431358.410076%
D73846989.452871%

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 7814 7385 0 0 0.00% 0.00%
B 7814 7385 45 45 0.58% 0.61%
C 7814 7385 3044 3044 38.96% 41.22%
D 7814 7385 521 521 6.67% 7.05%

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 15725 77.12 945 925 191.9
A 3 137 9173 42.98 945 925 191.9
A 0 226 8215 37.99 945 925 191.9
B 5 255 440164 2468.09 927 903 178.0
B 10 245 38783 212.84 927 903 178.0
B 5 172 27240 147.98 927 903 178.0
C 3 233 10592430 60376.59 754 758 175.4
C 14 238 126616 717.44 754 758 175.4
C 7 247 38131 213.04 754 758 175.4
D 7 223 1120542 5232.5 895 872 214.0
D 1 52 1090713 5093.1 895 872 214.0
D 12 233 454115 2118.12 895 872 214.0

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