ASTROSAT CZTI

Data Quality Report

Orbit 16643

Creation date: 2024-06-27T17:25:43.540739
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/AS1C04_007T07_9000002452_16643cztM0_level2.evt modeM0/AS1C04_007T07_9000002452_16643cztM0_level2_quad_clean.evt
Size (bytes)173,707,20040,383,360
Size165.7 MB 38.5 MB
Events in quadrant A1,338,635269,062
Events in quadrant B1,294,976274,173
Events in quadrant C1,211,637259,909
Events in quadrant D1,261,662258,167

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053901
B053351
C050651
D052221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2233411.836095%
B2233120.537394%
C2233391.746529%
D2233180.806090%

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 2234 2234 13 13 0.58% 0.58%
B 2234 2234 0 0 0.00% 0.00%
C 2234 2234 18 18 0.81% 0.81%
D 2234 2234 9 9 0.40% 0.40%

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 3 1 132650 2117.9 303 297 62.5
A 15 174 26386 417.47 303 297 62.5
A 12 96 5802 88.09 303 297 62.5
B 15 35 51543 872.35 298 291 58.8
B 0 198 48237 816.07 298 291 58.8
B 0 189 15647 261.37 298 291 58.8
C 3 233 69326 1038.07 280 282 66.5
C 14 238 44968 671.85 280 282 66.5
C 7 247 2694 36.26 280 282 66.5
D 1 52 69952 971.58 291 284 71.7
D 10 70 53233 738.42 291 284 71.7
D 5 222 14496 198.2 291 284 71.7

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