ASTROSAT CZTI

Data Quality Report

Orbit 08350

Creation date: 2024-06-27T15:31:26.311023
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_029T01_9000001158_08350cztM0_level2.evt modeM0/AS1G07_029T01_9000001158_08350cztM0_level2_quad_clean.evt
Size (bytes)418,184,64066,493,440
Size398.8 MB 63.4 MB
Events in quadrant A3,122,261401,609
Events in quadrant B3,094,458410,316
Events in quadrant C2,930,391396,088
Events in quadrant D3,104,811381,150

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129373
B0128082
C0124932
D0130962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6071490.807116%
B6071500.823588%
C6071210.345907%
D6071460.757701%

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 7366 6072 4 4 0.05% 0.07%
B 7366 6072 0 0 0.00% 0.00%
C 7366 6072 0 0 0.00% 0.00%
D 7366 6072 18 18 0.24% 0.30%

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 14 111 63731 400.66 786 770 157.1
A 15 239 34785 216.46 786 770 157.1
A 0 226 7423 42.34 786 770 157.1
B 0 214 17299 111.46 789 774 148.3
B 12 111 16032 102.92 789 774 148.3
B 11 111 13225 83.98 789 774 148.3
C 13 61 5715 28.52 751 756 173.9
C 3 202 1883 6.48 751 756 173.9
C -1 -1 -1 -1.0 751 756 173.9
D 2 14 92442 513.1 747 732 178.7
D 2 152 72097 399.27 747 732 178.7
D 12 233 41735 229.4 747 732 178.7

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