ASTROSAT CZTI

Data Quality Report

Orbit 19695

Creation date: 2024-06-27T18:05:41.586156
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/AS1A05_013T01_9000002944_19695cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19695cztM0_level2_quad_clean.evt
Size (bytes)304,234,56049,734,720
Size290.1 MB 47.4 MB
Events in quadrant A2,081,132309,018
Events in quadrant B2,210,583314,654
Events in quadrant C2,233,630293,284
Events in quadrant D2,391,066281,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090061
B093971
C093691
D0100431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4355250.574053%
B4354390.895728%
C4354461.056500%
D43541172.687184%

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 5420 4356 0 0 0.00% 0.00%
B 5419 4354 2 2 0.04% 0.05%
C 5419 4354 1 1 0.02% 0.02%
D 5419 4355 107 107 1.97% 2.46%

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 13 252 16246 144.54 533 523 108.8
A 10 253 9763 84.94 533 523 108.8
A 0 226 4626 37.72 533 523 108.8
B 4 216 69668 669.7 534 520 103.3
B 0 189 28023 266.37 534 520 103.3
B 0 197 13313 123.9 534 520 103.3
C 14 238 80767 671.4 509 512 119.5
C 3 233 74208 616.53 509 512 119.5
C 7 247 39752 328.28 509 512 119.5
D 7 238 375582 3012.68 509 494 124.5
D 12 227 46567 370.06 509 494 124.5
D 2 16 16885 131.65 509 494 124.5

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