ASTROSAT CZTI

Data Quality Report

Orbit 11049

Creation date: 2024-06-27T16:07:28.189347
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/AS1A04_113T02_9000001606_11049cztM0_level2.evt modeM0/AS1A04_113T02_9000001606_11049cztM0_level2_quad_clean.evt
Size (bytes)333,789,12050,227,200
Size318.3 MB 47.9 MB
Events in quadrant A4,312,754298,765
Events in quadrant B2,285,854327,890
Events in quadrant C1,370,802337,637
Events in quadrant D1,917,094324,517

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150530
B089880
C065770
D077470

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A326373222.433344%
B32632156.589029%
C326300.000000%
D3263662.022679%

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 3263 3263 609 609 18.66% 18.66%
B 3263 3263 150 150 4.60% 4.60%
C 3263 3263 0 0 0.00% 0.00%
D 3263 3263 67 67 2.05% 2.05%

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 14 238 2446608 34628.57 334 327 70.6
A 15 174 579077 8192.55 334 327 70.6
A 0 226 2979 37.54 334 327 70.6
B 4 239 815138 11518.86 357 349 70.7
B 0 214 29557 412.92 357 349 70.7
B 0 187 22087 307.32 357 349 70.7
C 8 128 5887 67.52 348 350 82.0
C 8 112 3184 34.56 348 350 82.0
C 13 61 2465 25.79 348 350 82.0
D 8 195 213957 2508.11 348 338 85.2
D 1 52 195149 2287.28 348 338 85.2
D 11 129 95281 1114.73 348 338 85.2

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