ASTROSAT CZTI

Data Quality Report

Orbit 12110

Creation date: 2024-06-27T16:22:32.742007
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/AS1G08_065T01_9000001796_12110cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12110cztM0_level2_quad_clean.evt
Size (bytes)502,761,60086,074,560
Size479.5 MB 82.1 MB
Events in quadrant A3,435,343544,281
Events in quadrant B4,352,530537,783
Events in quadrant C3,087,571536,658
Events in quadrant D3,891,487516,002

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144073
B0172652
C0137762
D0158292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6765971.433851%
B67652313.414634%
C6765400.591279%
D67651061.566888%

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 7811 6766 12 12 0.15% 0.18%
B 7811 6766 91 91 1.17% 1.34%
C 7811 6767 1 1 0.01% 0.01%
D 7811 6766 55 55 0.70% 0.81%

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 63 76500 452.02 824 807 167.5
A 1 162 59875 352.74 824 807 167.5
A 5 16 40165 235.04 824 807 167.5
B 4 239 524583 3348.85 812 792 156.4
B 0 85 299171 1907.68 812 792 156.4
B 4 206 115265 731.88 812 792 156.4
C 14 234 12016 61.69 788 788 182.0
C 13 61 5765 27.34 788 788 182.0
C 15 208 3007 12.19 788 788 182.0
D 1 52 329201 1750.57 786 764 187.6
D 8 195 238247 1265.79 786 764 187.6
D 10 50 82867 437.61 786 764 187.6

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