ASTROSAT CZTI

Data Quality Report

Orbit 34213

Creation date: 2024-06-27T20:57:49.807090
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/AS1T04_086T01_9000004884_34213cztM0_level2.evt modeM0/AS1T04_086T01_9000004884_34213cztM0_level2_quad_clean.evt
Size (bytes)1,485,792,000198,671,040
Size1.4 GB 189.5 MB
Events in quadrant A7,214,4451,278,208
Events in quadrant B14,020,6621,217,492
Events in quadrant C9,744,0301,256,775
Events in quadrant D12,961,0221,181,056

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03180
B03180
C03180
D03180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0510
B0510
C0510
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320135
B0521214
C0385574
D0489474

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15702280.178321%
B15702191012.164056%
C157025413.445421%
D1570210426.636097%

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 19850 15705 7 7 0.04% 0.04%
B 19850 15705 1276 1276 6.43% 8.12%
C 19850 15705 339 339 1.71% 2.16%
D 19850 15705 906 906 4.56% 5.77%

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 9 143 152513 420.39 1800 1760 358.6
A 10 83 50292 135.33 1800 1760 358.6
A 13 6 42283 113.0 1800 1760 358.6
B 5 172 3055649 9266.17 1725 1677 329.6
B 5 31 2631133 7978.13 1725 1677 329.6
B 5 15 709492 2147.61 1725 1677 329.6
C 4 254 1651940 4158.39 1740 1757 396.8
C 15 214 678960 1706.52 1740 1757 396.8
C 0 10 309326 775.06 1740 1757 396.8
D 10 118 2443395 5849.79 1728 1684 417.4
D 8 195 2235048 5350.63 1728 1684 417.4
D 2 250 465467 1111.12 1728 1684 417.4

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