ASTROSAT CZTI

Data Quality Report

Orbit 23016

Creation date: 2024-06-27T18:48:50.083836
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/AS1C05_004T01_9000003404_23016cztM0_level2.evt modeM0/AS1C05_004T01_9000003404_23016cztM0_level2_quad_clean.evt
Size (bytes)517,452,48086,460,480
Size493.5 MB 82.5 MB
Events in quadrant A3,212,031555,994
Events in quadrant B3,405,262566,024
Events in quadrant C3,302,159537,188
Events in quadrant D5,308,071503,229

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136422
B0141352
C0138952
D0202522

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6537911.392076%
B65371632.493499%
C65371652.524094%
D65374937.541686%

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 7747 6538 0 0 0.00% 0.00%
B 7747 6538 23 23 0.30% 0.35%
C 7747 6538 4 4 0.05% 0.06%
D 7747 6538 522 522 6.74% 7.98%

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 11 47 34193 204.04 825 807 163.6
A 13 254 9154 51.01 825 807 163.6
A 0 226 7008 37.9 825 807 163.6
B 4 216 107330 698.23 825 807 152.6
B 6 36 25070 159.04 825 807 152.6
B 12 111 18517 116.08 825 807 152.6
C 14 238 128655 698.63 790 796 183.0
C 0 10 52785 284.07 790 796 183.0
C 10 9 24002 126.8 790 796 183.0
D 1 52 2004306 10705.06 777 753 187.2
D 13 153 196239 1044.49 777 753 187.2
D 2 152 78105 413.29 777 753 187.2

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