ASTROSAT CZTI

Data Quality Report

Orbit 06279

Creation date: 2024-06-27T15:05:03.808120
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/AS1C02_018T02_9000000824_06279cztM0_level2.evt modeM0/AS1C02_018T02_9000000824_06279cztM0_level2_quad_clean.evt
Size (bytes)536,100,48077,253,120
Size511.3 MB 73.7 MB
Events in quadrant A3,647,388473,290
Events in quadrant B3,401,921484,085
Events in quadrant C3,037,924484,724
Events in quadrant D5,709,188444,768

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148713
B0142302
C0134102
D0214332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6489691.063338%
B64891191.833873%
C6489430.662660%
D64894526.965634%

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 7629 6489 2 2 0.03% 0.03%
B 7629 6489 46 46 0.60% 0.71%
C 7629 6489 1 1 0.01% 0.02%
D 7629 6489 418 418 5.48% 6.44%

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 8 15 404792 2494.95 799 782 161.9
A 15 236 100439 615.43 799 782 161.9
A 15 174 36386 219.87 799 782 161.9
B 3 64 142876 922.11 800 781 154.1
B 0 219 126214 813.98 800 781 154.1
B 4 81 27981 176.51 800 781 154.1
C 9 54 6657 32.76 776 779 179.4
C 13 61 6129 29.82 776 779 179.4
C 8 222 3201 13.5 776 779 179.4
D 12 220 1679266 8974.86 760 737 187.0
D 12 221 633959 3385.75 760 737 187.0
D 2 152 147763 786.13 760 737 187.0

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