ASTROSAT CZTI

Data Quality Report

Orbit 06344

Creation date: 2024-06-27T15:05:58.499321
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/AS1G06_132T01_9000000838_06344cztM0_level2.evt modeM0/AS1G06_132T01_9000000838_06344cztM0_level2_quad_clean.evt
Size (bytes)654,621,12095,984,640
Size624.3 MB 91.5 MB
Events in quadrant A3,427,972629,283
Events in quadrant B4,685,089610,151
Events in quadrant C3,082,695627,377
Events in quadrant D8,143,297539,320

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151982
B0187421
C0146491
D0292021

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7195560.778318%
B71954766.615705%
C7195340.472550%
D7195113215.733148%

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 7355 7198 10 10 0.14% 0.14%
B 7355 7198 278 278 3.78% 3.86%
C 7355 7198 1 1 0.01% 0.01%
D 7355 7198 1239 1239 16.85% 17.21%

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 15 236 180584 1082.64 815 798 166.1
A 13 251 49502 293.29 815 798 166.1
A 3 1 27401 160.2 815 798 166.1
B 3 64 1182641 7634.56 802 782 154.8
B 0 219 153824 988.62 802 782 154.8
B 15 204 85166 545.1 802 782 154.8
C 9 54 7476 36.6 785 788 182.7
C 13 61 6327 30.31 785 788 182.7
C 1 16 5438 25.45 785 788 182.7
D 1 239 1836166 10054.6 741 717 182.5
D 12 220 1522618 8336.98 741 717 182.5
D 12 221 1137043 6224.8 741 717 182.5

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