ASTROSAT CZTI

Data Quality Report

Orbit 07554

Creation date: 2024-06-27T15:21:28.535068
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_164T01_9000001040_07554cztM0_level2.evt modeM0/AS1G06_164T01_9000001040_07554cztM0_level2_quad_clean.evt
Size (bytes)470,842,56099,506,880
Size449.0 MB 94.9 MB
Events in quadrant A3,305,037649,867
Events in quadrant B3,306,821662,445
Events in quadrant C3,654,337630,122
Events in quadrant D3,547,187612,927

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140083
B0139002
C0150382
D0147842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6566801.218398%
B6566701.066098%
C65661932.939385%
D6566771.172708%

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 7851 6566 5 5 0.06% 0.08%
B 7851 6566 0 0 0.00% 0.00%
C 7851 6566 136 136 1.73% 2.07%
D 7851 6566 26 26 0.33% 0.40%

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 15 239 45782 267.59 845 829 168.0
A 0 226 8111 43.35 845 829 168.0
A 12 194 7386 39.03 845 829 168.0
B 0 214 24936 154.46 842 824 156.1
B 12 111 15779 95.8 842 824 156.1
B 11 111 12661 75.83 842 824 156.1
C 1 16 458501 2485.09 802 804 184.2
C 9 68 66798 358.32 802 804 184.2
C 13 61 6225 29.43 802 804 184.2
D 2 152 345597 1758.68 814 790 196.1
D 2 14 57653 290.03 814 790 196.1
D 5 97 33831 168.52 814 790 196.1

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