ASTROSAT CZTI

Data Quality Report

Orbit 20170613_G07_003T01_9000001290_level2

Creation date: 2025-11-14T11:32:49.904690
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/AS1G07_003T01_9000001290cztM0_level2.fits modeM0/AS1G07_003T01_9000001290cztM0_level2_quad_clean.evt
Size (bytes)262,592,640222,085,440
Size250.4 MB 211.8 MB
Events in quadrant A1,539,2221,246,714
Events in quadrant B1,532,9901,232,656
Events in quadrant C1,564,5661,177,913
Events in quadrant D1,362,7701,115,147

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0770640
B0621310
C0589020
D0613760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05800
B05820
C05780
D05800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2835115355.414271%
B283684001.410039%
C284462160.759333%
D284013791.334460%

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 34236 28566 0 0 0.00% 0.00%
B 34236 28587 0 0 0.00% 0.00%
C 34236 28651 0 0 0.00% 0.00%
D 34235 28594 0 0 0.00% 0.00%

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 29 1489 10.76 401 374 103.6
A 7 110 1287 8.81 401 374 103.6
A 0 30 1137 7.36 401 374 103.6
B 2 9 1367 11.8 404 383 83.4
B 2 8 1034 7.8 404 383 83.4
B 14 254 1032 7.78 404 383 83.4
C 12 241 1121 6.7 413 381 110.4
C 3 158 1084 6.37 413 381 110.4
C 9 242 1046 6.02 413 381 110.4
D 3 14 1055 6.75 386 350 104.5
D 6 231 1033 6.54 386 350 104.5
D 7 3 1023 6.44 386 350 104.5

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