ASTROSAT CZTI

Data Quality Report

Orbit 01293

Creation date: 2024-06-27T14:10:31.447750
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/AS1G04_002T02_9000000230_01293cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01293cztM0_level2_quad_clean.evt
Size (bytes)1,434,427,200106,231,680
Size1.3 GB 101.3 MB
Events in quadrant A8,897,156702,017
Events in quadrant B9,908,376698,923
Events in quadrant C8,612,638683,117
Events in quadrant D15,549,083629,875

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0315481
B0345710
C0307350
D0513060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7220150.207756%
B7220761.052632%
C722030.041551%
D722075610.470914%

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 7220 7220 344 344 4.76% 4.76%
B 7220 7220 714 714 9.89% 9.89%
C 7220 7220 206 206 2.85% 2.85%
D 7220 7220 4124 4124 57.12% 57.12%

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 4 32 227120 414.09 2254 2270 543.0
A 12 243 11433 16.87 2254 2270 543.0
A 11 79 9123 12.62 2254 2270 543.0
B 8 4 642220 1175.17 2314 2322 544.5
B 12 52 168312 304.84 2314 2322 544.5
B 0 244 130781 235.91 2314 2322 544.5
C 15 241 326174 553.05 2097 2171 585.9
C 3 79 40571 65.55 2097 2171 585.9
C 3 111 31740 50.47 2097 2171 585.9
D 13 169 6991054 11163.77 2008 2081 626.0
D 10 84 1006316 1604.11 2008 2081 626.0
D 1 83 41024 62.21 2008 2081 626.0

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