ASTROSAT CZTI

Data Quality Report

Orbit 10206

Creation date: 2024-06-27T15:56:20.318280
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_050T01_9000001468_10206cztM0_level2.evt modeM0/AS1A03_050T01_9000001468_10206cztM0_level2_quad_clean.evt
Size (bytes)195,298,56046,105,920
Size186.3 MB 44.0 MB
Events in quadrant A1,698,014296,222
Events in quadrant B1,213,782312,734
Events in quadrant C1,041,096315,138
Events in quadrant D1,795,484298,028

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065780
B051580
C048520
D069810

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A24162178.981788%
B241630.124172%
C241600.000000%
D2416451.862583%

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 2416 2416 190 190 7.86% 7.86%
B 2416 2416 1 1 0.04% 0.04%
C 2416 2416 0 0 0.00% 0.00%
D 2416 2416 66 66 2.73% 2.73%

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 15 223 381766 6710.67 267 262 56.9
A 8 15 123500 2167.76 267 262 56.9
A 15 239 83899 1471.18 267 262 56.9
B 11 51 61451 1144.28 276 269 53.5
B 5 32 20093 370.77 276 269 53.5
B 0 219 16682 306.97 276 269 53.5
C 0 207 7366 114.84 263 264 61.8
C 14 67 2652 38.61 263 264 61.8
C 13 61 2089 29.51 263 264 61.8
D 13 122 322161 4955.78 266 258 65.0
D 8 195 202900 3119.73 266 258 65.0
D 2 16 107072 1644.43 266 258 65.0

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