ASTROSAT CZTI

Data Quality Report

Orbit 07801

Creation date: 2024-06-27T15:24:11.196669
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_032T01_9000001074_07801cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07801cztM0_level2_quad_clean.evt
Size (bytes)437,993,280105,966,720
Size417.7 MB 101.1 MB
Events in quadrant A3,008,670687,741
Events in quadrant B3,184,352721,415
Events in quadrant C3,383,971697,348
Events in quadrant D3,251,273655,040

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131573
B0134442
C0141622
D0139902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6412450.701809%
B6412610.951341%
C6412741.154086%
D6412881.372427%

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 7662 6412 1 1 0.01% 0.02%
B 7662 6412 3 3 0.04% 0.05%
C 7662 6412 27 27 0.35% 0.42%
D 7662 6412 56 56 0.73% 0.87%

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 0 226 7335 41.91 779 762 156.8
A 12 194 6886 39.05 779 762 156.8
A 13 248 5362 29.33 779 762 156.8
B 0 219 38311 254.5 797 778 147.5
B 0 214 17689 114.67 797 778 147.5
B 12 111 14398 92.35 797 778 147.5
C 4 254 297740 1657.35 784 789 179.2
C 1 16 13827 72.77 784 789 179.2
C 10 22 6866 33.92 784 789 179.2
D 2 152 181045 967.32 770 748 186.4
D 2 14 147227 785.88 770 748 186.4
D 2 234 17205 88.29 770 748 186.4

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