ASTROSAT CZTI

Data Quality Report

Orbit 19085

Creation date: 2024-06-27T17:58:52.316244
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/AS1A05_046T01_9000002834_19085cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19085cztM0_level2_quad_clean.evt
Size (bytes)917,706,240143,389,440
Size875.2 MB 136.7 MB
Events in quadrant A6,098,271867,996
Events in quadrant B7,246,812883,013
Events in quadrant C6,587,516857,061
Events in quadrant D6,981,489837,094

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266523
B0293393
C0276323
D0294693

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129811541.186349%
B129812501.925892%
C129812521.941299%
D129802702.080123%

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 14201 12981 1 1 0.01% 0.01%
B 14201 12982 50 50 0.35% 0.39%
C 14201 12983 37 37 0.26% 0.28%
D 14200 12982 111 111 0.78% 0.86%

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 9 143 21252 61.7 1576 1540 319.5
A 13 254 16866 47.97 1576 1540 319.5
A 0 226 13548 37.58 1576 1540 319.5
B 10 245 365640 1195.69 1568 1523 304.5
B 3 112 242972 792.87 1568 1523 304.5
B 7 220 205648 670.31 1568 1523 304.5
C 0 207 305245 849.72 1515 1526 357.4
C 14 238 231220 642.62 1515 1526 357.4
C 3 233 145122 401.74 1515 1526 357.4
D 7 238 549492 1457.71 1535 1490 375.9
D 11 176 333706 883.71 1535 1490 375.9
D 1 52 244740 647.05 1535 1490 375.9

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