ASTROSAT CZTI

Data Quality Report

Orbit 06305

Creation date: 2024-06-27T15:05:23.079451
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/AS1A02_070T01_9000000832_06305cztM0_level2.evt modeM0/AS1A02_070T01_9000000832_06305cztM0_level2_quad_clean.evt
Size (bytes)583,439,04066,263,040
Size556.4 MB 63.2 MB
Events in quadrant A3,712,011382,373
Events in quadrant B3,799,795388,080
Events in quadrant C3,152,106392,952
Events in quadrant D6,534,217357,879

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152133
B0158942
C0142912
D0241292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6956690.991949%
B69561652.372053%
C6956400.575043%
D69566349.114434%

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 8591 6956 2 2 0.02% 0.03%
B 8591 6956 65 65 0.76% 0.93%
C 8591 6956 0 0 0.00% 0.00%
D 8591 6956 489 489 5.69% 7.03%

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 458267 2734.56 814 795 167.3
A 15 174 70156 414.61 814 795 167.3
A 13 251 34218 199.79 814 795 167.3
B 3 64 419560 2621.48 824 803 159.7
B 4 81 97586 605.87 824 803 159.7
B 0 219 63826 394.53 824 803 159.7
C 9 16 24555 126.93 798 802 187.1
C 13 61 6361 29.71 798 802 187.1
C 9 54 6172 28.7 798 802 187.1
D 2 63 2447177 12933.45 768 744 189.2
D 12 220 394806 2083.27 768 744 189.2
D 12 110 365672 1929.25 768 744 189.2

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