ASTROSAT CZTI

Data Quality Report

Orbit 15728

Creation date: 2024-06-27T17:12:38.479482
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/AS1G08_030T01_9000002326_15728cztM0_level2.evt modeM0/AS1G08_030T01_9000002326_15728cztM0_level2_quad_clean.evt
Size (bytes)470,940,48095,558,400
Size449.1 MB 91.1 MB
Events in quadrant A3,164,598615,998
Events in quadrant B3,312,812620,234
Events in quadrant C3,608,272596,309
Events in quadrant D3,714,350587,067

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140833
B0143802
C0148762
D0157852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6808350.514101%
B6808600.881316%
C6808781.145711%
D6808410.602233%

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 7740 6810 3 3 0.04% 0.04%
B 7740 6810 8 8 0.10% 0.12%
C 7740 6810 0 0 0.00% 0.00%
D 7740 6810 16 16 0.21% 0.23%

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 15 239 40218 241.81 807 790 163.1
A 13 248 18196 106.75 807 790 163.1
A 9 143 7474 40.99 807 790 163.1
B 5 236 33783 211.23 808 787 156.2
B 4 216 30137 187.89 808 787 156.2
B 3 209 28956 180.33 808 787 156.2
C 3 233 426814 2342.34 781 786 181.9
C 14 238 120743 659.53 781 786 181.9
C 10 22 10331 52.48 781 786 181.9
D 12 110 410210 1948.2 782 764 210.2
D 1 52 251919 1195.03 782 764 210.2
D 10 172 29379 136.15 782 764 210.2

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