ASTROSAT CZTI

Data Quality Report

Orbit 09966

Creation date: 2024-06-27T15:53:05.264533
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/AS1G07_047T01_9000001424_09966cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09966cztM0_level2_quad_clean.evt
Size (bytes)1,459,540,800230,751,360
Size1.4 GB 220.1 MB
Events in quadrant A8,762,4581,434,083
Events in quadrant B9,539,2611,455,345
Events in quadrant C8,546,5881,454,200
Events in quadrant D16,061,2931,327,243

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040117590
B041327642
C039778526
D0624891749

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03984
B03980
C03982
D03988

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A191373721.943878%
B191354792.503266%
C191512841.482951%
D19007205610.817067%

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 21263 19391 17 17 0.08% 0.09%
B 21263 19365 91 91 0.43% 0.47%
C 21263 19385 0 0 0.00% 0.00%
D 21263 19297 1646 1646 7.74% 8.53%

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 15 174 136011 294.0 2240 2193 455.2
A 0 226 20571 40.38 2240 2193 455.2
A 12 194 18383 35.57 2240 2193 455.2
B 4 81 346595 795.24 2254 2197 433.1
B 0 214 94789 213.8 2254 2197 433.1
B 0 219 92693 208.96 2254 2197 433.1
C 13 61 16190 27.49 2189 2199 508.9
C 8 222 7849 11.1 2189 2199 508.9
C 14 67 6053 7.57 2189 2199 508.9
D 1 52 5836355 11293.41 2051 1997 516.6
D 2 16 951612 1838.14 2051 1997 516.6
D 8 195 343560 661.15 2051 1997 516.6

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