ASTROSAT CZTI

Data Quality Report

Orbit 10778

Creation date: 2024-06-27T16:03:36.719906
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_014T02_9000001556_10778cztM0_level2.evt modeM0/AS1G07_014T02_9000001556_10778cztM0_level2_quad_clean.evt
Size (bytes)538,911,36073,370,880
Size513.9 MB 70.0 MB
Events in quadrant A3,061,017446,405
Events in quadrant B4,922,664438,205
Events in quadrant C3,034,298449,913
Events in quadrant D4,854,071425,355

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135493
B0189872
C0135482
D0188982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6613761.149251%
B66136389.647664%
C6613530.801452%
D66132714.097989%

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 7558 6613 1 1 0.01% 0.02%
B 7558 6613 357 357 4.72% 5.40%
C 7558 6613 0 0 0.00% 0.00%
D 7558 6613 183 183 2.42% 2.77%

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 1 162 10721 62.48 789 770 159.3
A 0 226 7234 40.59 789 770 159.3
A 12 194 6365 35.13 789 770 159.3
B 4 239 1786039 12063.82 767 749 148.0
B 15 204 84163 563.66 767 749 148.0
B 0 214 43699 290.23 767 749 148.0
C 14 234 6967 34.35 776 779 180.1
C 13 61 5753 27.61 776 779 180.1
C 8 222 2434 9.19 776 779 180.1
D 1 52 799971 4311.61 764 743 185.4
D 13 104 449423 2420.5 764 743 185.4
D 10 157 178288 957.8 764 743 185.4

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