ASTROSAT CZTI

Data Quality Report

Orbit 22976

Creation date: 2024-06-27T18:48:14.746501
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/AS1A07_062T01_9000003392_22976cztM0_level2.evt modeM0/AS1A07_062T01_9000003392_22976cztM0_level2_quad_clean.evt
Size (bytes)300,055,68066,697,920
Size286.2 MB 63.6 MB
Events in quadrant A2,010,525440,372
Events in quadrant B2,108,475438,629
Events in quadrant C2,035,006420,094
Events in quadrant D2,629,453407,721

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089170
B090790
C090330
D0108530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A444440.090009%
B444440.090009%
C4444170.382538%
D44441353.037804%

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 4444 4444 0 0 0.00% 0.00%
B 4444 4444 0 0 0.00% 0.00%
C 4444 4444 3 3 0.07% 0.07%
D 4444 4444 120 120 2.70% 2.70%

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 13 170 37028 351.93 511 499 103.8
A 13 254 6834 61.03 511 499 103.8
A 0 226 4365 37.25 511 499 103.8
B 3 209 54051 543.62 506 493 98.5
B 0 189 37591 376.55 506 493 98.5
B 0 190 30343 302.98 506 493 98.5
C 14 238 76974 665.95 485 487 114.9
C 0 239 32910 282.3 485 487 114.9
C 8 208 15315 129.1 485 487 114.9
D 1 52 321171 2656.33 490 475 120.7
D 13 153 292775 2421.12 490 475 120.7
D 12 233 75181 618.79 490 475 120.7

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