ASTROSAT CZTI

Data Quality Report

Orbit 08211

Creation date: 2024-06-27T15:29:45.701351
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/AS1G07_034T01_9000001134_08211cztM0_level2.evt modeM0/AS1G07_034T01_9000001134_08211cztM0_level2_quad_clean.evt
Size (bytes)546,791,040106,390,080
Size521.5 MB 101.5 MB
Events in quadrant A3,733,772668,079
Events in quadrant B3,713,589680,890
Events in quadrant C3,467,738683,653
Events in quadrant D5,125,431657,485

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164173
B0162413
C0157523
D0205673

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7645851.111838%
B76451021.334205%
C7645410.536298%
D76453644.761282%

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 8320 7649 7 7 0.08% 0.09%
B 8320 7649 6 6 0.07% 0.08%
C 8320 7649 0 0 0.00% 0.00%
D 8320 7649 335 335 4.03% 4.38%

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 5 112 174441 926.74 913 889 187.3
A 5 16 27920 144.34 913 889 187.3
A 8 15 20836 106.51 913 889 187.3
B 0 214 57166 315.42 918 893 178.4
B 0 213 38790 212.42 918 893 178.4
B 12 111 18270 97.4 918 893 178.4
C 13 61 6763 28.53 887 890 205.8
C 14 67 4572 17.89 887 890 205.8
C 12 4 3273 11.58 887 890 205.8
D 1 7 1422454 5966.53 873 854 238.3
D 1 52 124867 520.49 873 854 238.3
D 2 152 105752 440.26 873 854 238.3

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