ASTROSAT CZTI

Data Quality Report

Orbit 01213

Creation date: 2024-06-27T14:09:14.099390
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/AS1G04_007T02_9000000220_01213cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01213cztM0_level2_quad_clean.evt
Size (bytes)371,116,80039,818,880
Size353.9 MB 38.0 MB
Events in quadrant A2,744,656257,576
Events in quadrant B2,971,549258,134
Events in quadrant C2,808,981255,483
Events in quadrant D2,540,943250,141

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100061
B0106561
C0101951
D093831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A256400.000000%
B256420.078003%
C256400.000000%
D256430.117005%

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 2564 2564 24 24 0.94% 0.94%
B 2564 2564 47 47 1.83% 1.83%
C 2564 2564 23 23 0.90% 0.90%
D 2564 2564 25 25 0.98% 0.98%

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 12 243 12786 71.15 708 714 169.7
A 15 233 7760 41.53 708 714 169.7
A 0 31 5801 29.98 708 714 169.7
B 6 53 45261 248.9 765 770 178.8
B 15 22 5825 28.28 765 770 178.8
B 0 49 5285 25.26 765 770 178.8
C 15 241 133260 700.13 681 706 189.3
C 3 111 7227 34.44 681 706 189.3
C 3 79 4677 20.97 681 706 189.3
D 9 66 129725 646.24 633 652 199.7
D 13 205 38302 188.51 633 652 199.7
D 13 252 4314 18.33 633 652 199.7

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