ASTROSAT CZTI

Data Quality Report

Orbit 23333

Creation date: 2024-06-27T18:52:56.922291
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_148T05_9000003446_23333cztM0_level2.evt modeM0/AS1A07_148T05_9000003446_23333cztM0_level2_quad_clean.evt
Size (bytes)471,499,20047,741,760
Size449.7 MB 45.5 MB
Events in quadrant A2,260,671297,920
Events in quadrant B2,294,809297,820
Events in quadrant C2,422,732288,408
Events in quadrant D7,016,017264,134

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093010
B094060
C098080
D0238280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A421540.094899%
B4216100.237192%
C4216300.711575%
D421668916.342505%

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 4215 4215 0 0 0.00% 0.00%
B 4216 4216 7 7 0.17% 0.17%
C 4216 4216 11 11 0.26% 0.26%
D 4216 4216 760 760 18.03% 18.03%

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 6 16 12629 103.19 583 575 116.8
A 13 254 6249 48.57 583 575 116.8
A 0 226 5150 39.16 583 575 116.8
B 4 216 20661 188.21 575 564 106.8
B 0 230 13623 122.3 575 564 106.8
B 12 111 11708 104.36 575 564 106.8
C 10 9 110085 842.72 564 571 130.0
C 14 238 91046 696.21 564 571 130.0
C 7 247 16459 122.26 564 571 130.0
D 7 223 4111686 30642.89 555 541 134.2
D 1 52 575042 4282.11 555 541 134.2
D 7 238 169159 1256.81 555 541 134.2

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