ASTROSAT CZTI

Data Quality Report

Orbit 14057

Creation date: 2024-06-27T16:49:46.403624
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_162T01_9000002074_14057cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14057cztM0_level2_quad_clean.evt
Size (bytes)494,879,040129,637,440
Size472.0 MB 123.6 MB
Events in quadrant A3,253,416885,680
Events in quadrant B3,675,523892,849
Events in quadrant C3,159,451854,860
Events in quadrant D4,437,364819,078

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141433
B0154322
C0139832
D0177322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6802170.249926%
B68021251.837695%
C6802150.220523%
D68021101.617171%

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 7623 6804 1 1 0.01% 0.01%
B 7623 6804 39 39 0.51% 0.57%
C 7623 6804 2 2 0.03% 0.03%
D 7623 6804 92 92 1.21% 1.35%

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 12 189 80948 494.98 798 782 162.0
A 15 222 43935 266.45 798 782 162.0
A 9 143 33764 203.65 798 782 162.0
B 0 85 186679 1236.46 798 778 150.3
B 0 189 135831 898.26 798 778 150.3
B 0 219 62074 407.69 798 778 150.3
C 3 233 129870 736.77 761 764 175.2
C 9 15 32963 183.75 761 764 175.2
C 0 207 27046 149.98 761 764 175.2
D 12 110 458436 2459.64 757 733 186.1
D 1 52 356553 1912.14 757 733 186.1
D 15 0 247012 1323.47 757 733 186.1

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