ASTROSAT CZTI

Data Quality Report

Orbit 06713

Creation date: 2024-06-27T15:11:00.151799
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_9000000922_06713cztM0_level2.evt modeM0/AS1G06_164T01_9000000922_06713cztM0_level2_quad_clean.evt
Size (bytes)546,782,40087,816,960
Size521.5 MB 83.7 MB
Events in quadrant A3,421,148571,542
Events in quadrant B3,245,527573,069
Events in quadrant C3,003,746567,848
Events in quadrant D6,443,331488,969

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147213
B0142952
C0135402
D0236872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65581973.003965%
B6558861.311375%
C6558741.128393%
D6558155023.635255%

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 7658 6559 53 53 0.69% 0.81%
B 7658 6559 2 2 0.03% 0.03%
C 7658 6559 0 0 0.00% 0.00%
D 7658 6559 1245 1245 16.26% 18.98%

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 14 111 284926 1793.88 778 762 158.4
A 8 15 92266 577.65 778 762 158.4
A 4 2 31887 196.49 778 762 158.4
B 0 214 101015 668.23 791 773 150.0
B 4 81 37761 246.57 791 773 150.0
B 0 198 15225 96.34 791 773 150.0
C 13 61 5925 29.3 768 771 175.9
C 4 254 3737 16.86 768 771 175.9
C 12 4 2902 12.12 768 771 175.9
D 2 33 3657415 22771.39 660 639 160.6
D 8 195 162502 1007.95 660 639 160.6
D 2 152 47974 294.76 660 639 160.6

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