ASTROSAT CZTI

Data Quality Report

Orbit 09796

Creation date: 2024-06-27T15:50:45.944688
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/AS1G05_218T01_9000001394_09796cztM0_level2.evt modeM0/AS1G05_218T01_9000001394_09796cztM0_level2_quad_clean.evt
Size (bytes)508,749,12092,543,040
Size485.2 MB 88.3 MB
Events in quadrant A2,987,677604,827
Events in quadrant B3,085,754619,489
Events in quadrant C2,978,065605,843
Events in quadrant D5,924,880529,283

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01326
C01320
D01326

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013390199
B013596215
C013423209
D022792786

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6374370.580483%
B6369510.800754%
C6370270.423862%
D627864210.226187%

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 7625 6470 0 0 0.00% 0.00%
B 7625 6467 5 5 0.07% 0.08%
C 7625 6466 0 0 0.00% 0.00%
D 7625 6461 456 456 5.98% 7.06%

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 0 226 7055 40.05 775 759 157.2
A 12 194 6313 35.33 775 759 157.2
A 13 253 4724 25.22 775 759 157.2
B 0 214 30560 198.19 782 763 150.3
B 12 111 16632 105.55 782 763 150.3
B 11 111 13563 85.14 782 763 150.3
C 5 128 5616 27.46 761 765 176.6
C 13 61 5548 27.08 761 765 176.6
C 9 237 2121 7.68 761 765 176.6
D 1 52 3008637 16599.93 701 685 181.2
D 2 152 128857 707.34 701 685 181.2
D 2 14 73350 401.02 701 685 181.2

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