ASTROSAT CZTI

Data Quality Report

Orbit 17167

Creation date: 2024-06-27T17:33:04.951655
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_059T01_9000002546_17167cztM0_level2.evt modeM0/AS1T03_059T01_9000002546_17167cztM0_level2_quad_clean.evt
Size (bytes)447,096,96092,361,600
Size426.4 MB 88.1 MB
Events in quadrant A3,075,428599,538
Events in quadrant B3,142,274621,243
Events in quadrant C3,614,726579,710
Events in quadrant D3,284,495561,537

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130103
B0130693
C0147223
D0138653

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6227430.690541%
B6227600.963546%
C6227791.268669%
D6227510.819014%

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 7572 6229 0 0 0.00% 0.00%
B 7572 6229 0 0 0.00% 0.00%
C 7572 6229 0 0 0.00% 0.00%
D 7572 6229 34 34 0.45% 0.55%

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 21316 128.98 793 778 159.2
A 4 2 9834 56.87 793 778 159.2
A 0 226 6850 38.13 793 778 159.2
B 12 111 18228 115.4 804 786 151.1
B 11 111 15575 97.85 804 786 151.1
B 14 111 14034 87.65 804 786 151.1
C 3 233 488871 2730.41 768 775 178.8
C 14 238 119506 664.18 768 775 178.8
C 4 254 9779 50.37 768 775 178.8
D 5 222 316328 1701.02 769 750 185.5
D 2 152 32563 171.48 769 750 185.5
D 2 234 20591 106.95 769 750 185.5

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