ASTROSAT CZTI

Data Quality Report

Orbit 08056

Creation date: 2024-06-27T15:27:22.542406
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/AS1A02_055T01_9000001114_08056cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08056cztM0_level2_quad_clean.evt
Size (bytes)488,099,52080,138,880
Size465.5 MB 76.4 MB
Events in quadrant A3,598,106480,035
Events in quadrant B3,660,365494,771
Events in quadrant C3,074,709499,721
Events in quadrant D3,982,092473,344

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152713
B0152322
C0139022
D0165482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68691572.285631%
B68691181.717863%
C6869660.960839%
D68692283.319260%

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 7709 6871 60 60 0.78% 0.87%
B 7709 6871 19 19 0.25% 0.28%
C 7709 6871 0 0 0.00% 0.00%
D 7709 6871 137 137 1.78% 1.99%

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 2 497136 3003.55 804 785 165.3
A 0 226 7505 40.66 804 785 165.3
A 12 194 7338 39.65 804 785 165.3
B 4 239 208288 1329.62 808 790 156.1
B 0 213 114511 728.71 808 790 156.1
B 11 51 68200 431.96 808 790 156.1
C 1 16 18846 99.14 783 785 182.2
C 13 61 6064 28.98 783 785 182.2
C 8 222 2368 8.69 783 785 182.2
D 1 52 392709 1914.74 769 750 204.7
D 13 105 270130 1315.93 769 750 204.7
D 4 95 182829 889.46 769 750 204.7

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