ASTROSAT CZTI

Data Quality Report

Orbit 27763

Creation date: 2024-06-27T19:44:01.851011
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/AS1A10_002T05_9000004000_27763cztM0_level2.evt modeM0/AS1A10_002T05_9000004000_27763cztM0_level2_quad_clean.evt
Size (bytes)139,826,88035,199,360
Size133.3 MB 33.6 MB
Events in quadrant A828,942252,577
Events in quadrant B1,191,715245,835
Events in quadrant C907,193241,061
Events in quadrant D1,209,141221,636

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033800
B045390
C036890
D044860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A140240.285307%
B1403906.414825%
C1403261.853172%
D140316111.475410%

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 1402 1402 0 0 0.00% 0.00%
B 1403 1403 55 55 3.92% 3.92%
C 1403 1403 0 0 0.00% 0.00%
D 1403 1403 132 132 9.41% 9.41%

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 13 254 2468 51.62 214 211 43.7
A 0 226 1994 40.78 214 211 43.7
A 3 137 1702 34.1 214 211 43.7
B 3 64 382218 9830.42 204 199 38.9
B 4 52 5185 128.3 204 199 38.9
B 12 111 4034 98.69 204 199 38.9
C 3 233 70972 1448.99 205 206 48.8
C 14 238 33603 683.83 205 206 48.8
C 12 249 2044 37.63 205 206 48.8
D 1 52 433980 9211.2 196 191 47.1
D 2 250 16114 338.11 196 191 47.1
D 2 234 6305 129.83 196 191 47.1

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