ASTROSAT CZTI

Data Quality Report

Orbit 19232

Creation date: 2024-06-27T18:00:26.657062
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/AS1C04_001T01_9000002846_19232cztM0_level2.evt modeM0/AS1C04_001T01_9000002846_19232cztM0_level2_quad_clean.evt
Size (bytes)503,570,88082,681,920
Size480.2 MB 78.9 MB
Events in quadrant A3,120,178523,912
Events in quadrant B3,213,910531,799
Events in quadrant C3,896,456505,154
Events in quadrant D4,582,727493,011

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135152
B0137051
C0159301
D0179911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6450691.069767%
B6450781.209302%
C64501141.767442%
D64503595.565891%

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 7505 6450 7 7 0.09% 0.11%
B 7505 6450 5 5 0.07% 0.08%
C 7505 6450 7 7 0.09% 0.11%
D 7505 6450 236 236 3.14% 3.66%

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 9 143 49587 302.05 796 778 161.6
A 13 254 8905 50.29 796 778 161.6
A 0 226 6810 37.33 796 778 161.6
B 7 220 26488 172.82 791 771 148.8
B 0 198 20123 130.04 791 771 148.8
B 4 80 19042 122.78 791 771 148.8
C 3 233 763362 4331.44 761 762 176.1
C 14 238 119805 676.14 761 762 176.1
C 0 207 39214 218.4 761 762 176.1
D 1 52 1370768 7398.63 766 744 185.2
D 11 176 222048 1195.12 766 744 185.2
D 13 104 39175 207.54 766 744 185.2

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