ASTROSAT CZTI

Data Quality Report

Orbit 23507

Creation date: 2024-06-27T18:55:25.662701
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/AS1A07_112T01_9000003478_23507cztM0_level2.evt modeM0/AS1A07_112T01_9000003478_23507cztM0_level2_quad_clean.evt
Size (bytes)419,952,96084,363,840
Size400.5 MB 80.5 MB
Events in quadrant A2,988,568555,485
Events in quadrant B3,165,665556,753
Events in quadrant C2,994,967532,364
Events in quadrant D3,188,324518,692

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01153
B01140
C01120
D01162

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012119231
B012923293
C012216195
D013115400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151
B0140
C0141
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5610500.891266%
B5598801.429082%
C5621751.334282%
D5569470.843958%

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 7066 5691 0 0 0.00% 0.00%
B 7066 5682 9 9 0.13% 0.16%
C 7066 5699 1 1 0.01% 0.02%
D 7066 5673 9 9 0.13% 0.16%

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 2 79 18790 118.66 770 758 152.0
A 13 254 10056 61.18 770 758 152.0
A 0 226 6783 39.65 770 758 152.0
B 0 219 147968 1048.55 748 732 140.4
B 0 189 62580 440.45 748 732 140.4
B 12 111 16226 110.34 748 732 140.4
C 14 238 118237 711.4 724 732 165.2
C 7 247 42872 255.12 724 732 165.2
C 0 207 7193 39.12 724 732 165.2
D 1 52 300096 1670.45 737 717 179.2
D 9 85 59654 328.85 737 717 179.2
D 2 234 22082 119.21 737 717 179.2

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