ASTROSAT CZTI

Data Quality Report

Orbit 24413

Creation date: 2024-06-27T19:05:46.776662
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/AS1A07_054T01_9000003604_24413cztM0_level2.evt modeM0/AS1A07_054T01_9000003604_24413cztM0_level2_quad_clean.evt
Size (bytes)185,244,48047,445,120
Size176.7 MB 45.2 MB
Events in quadrant A1,219,350324,915
Events in quadrant B1,356,208329,517
Events in quadrant C1,215,491311,207
Events in quadrant D1,654,169298,572

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050181
B054502
C050001
D064811

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2401572.374011%
B2400441.833333%
C2400672.791667%
D24002219.208333%

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 3246 2402 0 0 0.00% 0.00%
B 3245 2401 1 1 0.03% 0.04%
C 3245 2401 0 0 0.00% 0.00%
D 3245 2401 155 155 4.78% 6.46%

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 13 254 3942 55.94 316 308 65.0
A 3 137 2869 39.43 316 308 65.0
A 0 226 2748 37.56 316 308 65.0
B 15 33 84905 1361.27 313 304 62.1
B 0 190 37747 602.47 313 304 62.1
B 4 171 8995 139.84 313 304 62.1
C 14 238 47820 667.65 298 298 71.2
C 7 247 2626 32.71 298 298 71.2
C 13 61 2225 27.07 298 298 71.2
D 1 52 478171 6448.52 298 288 74.1
D 9 1 35732 478.28 298 288 74.1
D 2 234 9720 127.27 298 288 74.1

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