ASTROSAT CZTI

Data Quality Report

Orbit 05032

Creation date: 2024-06-27T14:50:26.536271
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/AS1G05_250T02_9000000638_05032cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05032cztM0_level2_quad_clean.evt
Size (bytes)506,018,88094,328,640
Size482.6 MB 90.0 MB
Events in quadrant A3,279,321590,651
Events in quadrant B3,812,519592,080
Events in quadrant C3,222,190599,669
Events in quadrant D4,511,584562,445

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151153
B0164902
C0150052
D0185842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7354460.625510%
B7354811.101441%
C7354340.462333%
D73541872.542834%

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 9194 7356 0 0 0.00% 0.00%
B 9194 7356 8 8 0.09% 0.11%
C 9194 7356 0 0 0.00% 0.00%
D 9194 7356 109 109 1.19% 1.48%

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 13 251 42794 245.04 837 817 171.3
A 0 226 8278 43.55 837 817 171.3
A 12 194 8209 43.15 837 817 171.3
B 4 48 244608 1492.39 850 828 163.3
B 15 204 152072 925.89 850 828 163.3
B 10 247 60309 364.13 850 828 163.3
C 1 16 19194 96.99 819 822 189.4
C 9 54 9213 44.3 819 822 189.4
C 13 61 6662 30.83 819 822 189.4
D 13 235 556823 2799.37 804 781 198.6
D 12 227 396123 1990.33 804 781 198.6
D 12 233 352387 1770.14 804 781 198.6

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