ASTROSAT CZTI

Data Quality Report

Orbit 36582

Creation date: 2024-06-27T21:28:44.336205
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/AS1A11_097T17_9000005222_36582cztM0_level2.evt modeM0/AS1A11_097T17_9000005222_36582cztM0_level2_quad_clean.evt
Size (bytes)407,260,80085,728,960
Size388.4 MB 81.8 MB
Events in quadrant A2,565,908575,684
Events in quadrant B2,786,430573,432
Events in quadrant C3,087,038551,887
Events in quadrant D3,544,902534,640

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107952
B0115741
C0121491
D0139321

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A514260.116686%
B5142190.369506%
C51421292.508751%
D5142891.730844%

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 7115 5143 2 2 0.03% 0.04%
B 7115 5143 4 4 0.06% 0.08%
C 7115 5143 97 97 1.36% 1.89%
D 7115 5143 76 76 1.07% 1.48%

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 10 83 171103 1394.36 605 594 122.3
A 15 223 49217 397.62 605 594 122.3
A 13 254 9129 69.8 605 594 122.3
B 0 213 274856 2408.73 595 580 113.9
B 0 190 62406 542.96 595 580 113.9
B 4 232 24451 209.64 595 580 113.9
C 0 10 324131 2400.08 580 585 134.8
C 14 254 257716 1907.41 580 585 134.8
C 15 214 217673 1610.37 580 585 134.8
D 12 235 407849 2829.09 588 571 144.0
D 5 222 222894 1544.33 588 571 144.0
D 2 153 123733 855.52 588 571 144.0

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