ASTROSAT CZTI

Data Quality Report

Orbit 07513

Creation date: 2024-06-27T15:20:42.303090
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_134T01_9000001036_07513cztM0_level2.evt modeM0/AS1A02_134T01_9000001036_07513cztM0_level2_quad_clean.evt
Size (bytes)490,213,44090,679,680
Size467.5 MB 86.5 MB
Events in quadrant A3,081,568590,649
Events in quadrant B3,195,714596,501
Events in quadrant C3,960,856571,243
Events in quadrant D4,167,040534,670

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134463
B0137702
C0161662
D0169502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6493901.386108%
B6493941.447713%
C6493691.062683%
D64934917.561990%

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 7679 6494 0 0 0.00% 0.00%
B 7679 6495 0 0 0.00% 0.00%
C 7679 6495 2 2 0.03% 0.03%
D 7679 6494 277 277 3.61% 4.27%

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 14 16135 96.26 794 776 159.6
A 3 1 8095 45.87 794 776 159.6
A 0 226 7688 43.32 794 776 159.6
B 0 214 90651 608.34 797 779 147.7
B 0 219 17169 110.94 797 779 147.7
B 12 111 14227 91.03 797 779 147.7
C 9 68 953562 5502.21 761 764 173.2
C 8 229 21301 118.6 761 764 173.2
C 12 4 10273 54.91 761 764 173.2
D 1 20 1022389 5684.42 741 719 179.7
D 2 152 74473 410.36 741 719 179.7
D 2 14 71991 396.55 741 719 179.7

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