ASTROSAT CZTI

Data Quality Report

Orbit 09222

Creation date: 2024-06-27T15:42:53.735336
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/AS1A02_178T01_9000001286_09222cztM0_level2.evt modeM0/AS1A02_178T01_9000001286_09222cztM0_level2_quad_clean.evt
Size (bytes)466,908,48065,148,480
Size445.3 MB 62.1 MB
Events in quadrant A4,277,422376,130
Events in quadrant B3,258,337386,014
Events in quadrant C3,074,239376,313
Events in quadrant D3,076,076367,872

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169842
B0139291
C0136331
D0138171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66851412.109200%
B6685550.822737%
C6685260.388930%
D6685340.508601%

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 7685 6687 83 83 1.08% 1.24%
B 7685 6687 0 0 0.00% 0.00%
C 7685 6687 0 0 0.00% 0.00%
D 7685 6687 8 8 0.10% 0.12%

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 8 5 763624 4705.05 799 783 162.1
A 5 16 121071 741.91 799 783 162.1
A 15 223 102826 629.38 799 783 162.1
B 0 214 35262 221.38 812 792 155.7
B 0 219 24630 153.1 812 792 155.7
B 4 48 19571 120.61 812 792 155.7
C 8 128 12321 63.05 781 784 183.0
C 8 112 6181 29.49 781 784 183.0
C 13 61 5985 28.42 781 784 183.0
D 1 52 57335 267.99 772 755 211.1
D 2 152 24421 112.09 772 755 211.1
D 2 234 24211 111.1 772 755 211.1

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