ASTROSAT CZTI

Data Quality Report

Orbit 09843

Creation date: 2024-06-27T15:51:20.927525
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/AS1A03_134T01_9000001400_09843cztM0_level2.evt modeM0/AS1A03_134T01_9000001400_09843cztM0_level2_quad_clean.evt
Size (bytes)219,911,04056,416,320
Size209.7 MB 53.8 MB
Events in quadrant A1,619,972380,145
Events in quadrant B1,587,210375,716
Events in quadrant C1,573,722374,799
Events in quadrant D1,652,838344,092

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128785888
B0130216276
C0128135882
D0144847394

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012652
B012674
C012652
D012658

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185
B0184
C0185
D0194

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3352250.745823%
B3218341.056557%
C332880.240385%
D3207290.904272%

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 7556 4155 0 0 0.00% 0.00%
B 7551 4018 0 0 0.00% 0.00%
C 7559 4129 0 0 0.00% 0.00%
D 7529 3975 8 8 0.11% 0.20%

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 13 248 8134 89.13 418 409 86.7
A 0 226 3817 39.32 418 409 86.7
A 12 194 3226 32.5 418 409 86.7
B 12 111 8580 106.23 405 395 77.1
B 4 173 7968 98.29 405 395 77.1
B 11 111 7039 86.23 405 395 77.1
C 13 61 3006 27.74 402 405 93.8
C 14 67 1744 14.28 402 405 93.8
C 14 234 1675 13.54 402 405 93.8
D 2 16 87253 911.57 378 368 95.3
D 1 52 58235 607.12 378 368 95.3
D 13 104 46270 481.59 378 368 95.3

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