ASTROSAT CZTI

Data Quality Report

Orbit 16078

Creation date: 2024-06-27T17:17:37.080742
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/AS1A04_230T01_9000002374_16078cztM0_level2.evt modeM0/AS1A04_230T01_9000002374_16078cztM0_level2_quad_clean.evt
Size (bytes)413,078,40096,448,320
Size393.9 MB 92.0 MB
Events in quadrant A3,017,199645,153
Events in quadrant B3,099,517641,881
Events in quadrant C2,965,693605,403
Events in quadrant D3,013,865603,610

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128732
B0129241
C0126601
D0130241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6085430.706656%
B6085500.821693%
C6085570.936730%
D6085310.509449%

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 7206 6086 4 4 0.06% 0.07%
B 7206 6086 4 4 0.06% 0.07%
C 7206 6086 0 0 0.00% 0.00%
D 7206 6086 6 6 0.08% 0.10%

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 15 174 25745 160.63 771 755 155.6
A 9 143 24428 152.17 771 755 155.6
A 0 226 6985 40.05 771 755 155.6
B 0 190 32239 217.64 761 743 144.7
B 7 220 31534 212.77 761 743 144.7
B 12 111 16102 106.13 761 743 144.7
C 14 238 112481 662.98 722 730 168.6
C 3 233 24937 143.61 722 730 168.6
C 10 22 6685 35.33 722 730 168.6
D 13 104 137142 753.23 744 722 181.1
D 2 234 25837 138.67 744 722 181.1
D 12 110 22748 121.61 744 722 181.1

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