ASTROSAT CZTI

Data Quality Report

Orbit 16553

Creation date: 2024-06-27T17:24:19.015797
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_018T01_9000002442_16553cztM0_level2.evt modeM0/AS1T03_018T01_9000002442_16553cztM0_level2_quad_clean.evt
Size (bytes)477,685,44089,965,440
Size455.6 MB 85.8 MB
Events in quadrant A3,117,205575,900
Events in quadrant B3,503,917583,376
Events in quadrant C3,213,754570,074
Events in quadrant D4,193,373544,503

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135412
B0145571
C0137011
D0168621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6455540.836561%
B6455661.022463%
C6455691.068939%
D64551872.896979%

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 7376 6457 0 0 0.00% 0.00%
B 7376 6457 4 4 0.05% 0.06%
C 7376 6457 0 0 0.00% 0.00%
D 7376 6457 144 144 1.95% 2.23%

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 103393 648.5 777 761 158.3
A 15 223 19825 120.46 777 761 158.3
A 0 226 6856 38.51 777 761 158.3
B 7 220 152148 1008.5 775 758 150.1
B 15 35 119445 790.64 775 758 150.1
B 0 198 51579 338.55 775 758 150.1
C 3 233 210641 1211.01 741 746 173.3
C 14 238 112534 644.97 741 746 173.3
C 13 61 5297 26.26 741 746 173.3
D 5 222 964032 5240.23 746 723 183.8
D 1 52 168696 913.74 746 723 183.8
D 2 33 110569 597.54 746 723 183.8

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