ASTROSAT CZTI

Data Quality Report

Orbit 17547

Creation date: 2024-06-27T17:37:51.522510
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/AS1T03_066T01_9000002600_17547cztM0_level2.evt modeM0/AS1T03_066T01_9000002600_17547cztM0_level2_quad_clean.evt
Size (bytes)587,148,48072,599,040
Size559.9 MB 69.2 MB
Events in quadrant A3,971,481444,543
Events in quadrant B4,962,615411,675
Events in quadrant C4,541,889430,610
Events in quadrant D3,839,257431,518

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162811
B0192101
C0179362
D0161621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68801522.209302%
B688172410.521726%
C68803665.319767%
D68801412.049419%

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 7200 6881 34 34 0.47% 0.49%
B 7201 6881 484 484 6.72% 7.03%
C 7200 6880 137 137 1.90% 1.99%
D 7200 6881 52 52 0.72% 0.76%

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 14 237 505707 2956.72 832 813 170.8
A 15 174 264741 1545.59 832 813 170.8
A 0 226 7402 38.59 832 813 170.8
B 10 245 1749989 11285.4 801 780 155.0
B 0 219 19884 123.25 801 780 155.0
B 12 111 18102 111.76 801 780 155.0
C 3 233 707229 3811.21 787 791 185.4
C 0 79 615784 3317.87 787 791 185.4
C 14 238 119737 641.71 787 791 185.4
D 5 222 535429 2714.95 811 786 196.9
D 10 70 102987 518.98 811 786 196.9
D 13 189 78501 394.64 811 786 196.9

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