ASTROSAT CZTI

Data Quality Report

Orbit 43272

Creation date: 2024-06-27T22:50:00.905727
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/AS1A06_006T01_9000005860_43272cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43272cztM0_level2_quad_clean.evt
Size (bytes)303,408,00086,045,760
Size289.4 MB 82.1 MB
Events in quadrant A3,374,341556,419
Events in quadrant B2,237,744602,602
Events in quadrant C2,606,718575,228
Events in quadrant D2,626,750524,180

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130502
B099422
C0106332
D0110522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49471973.982211%
B494760.121286%
C4947170.343643%
D4947340.687285%

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 7069 4948 156 156 2.21% 3.15%
B 7069 4948 2 2 0.03% 0.04%
C 7069 4948 11 11 0.16% 0.22%
D 7069 4948 23 23 0.33% 0.46%

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 10 83 539708 4745.75 555 543 113.6
A 15 237 469237 4125.47 555 543 113.6
A 13 248 206824 1815.69 555 543 113.6
B 12 111 13618 119.79 564 549 109.1
B 5 255 13268 116.58 564 549 109.1
B 11 111 12804 112.33 564 549 109.1
C 15 214 208724 1587.06 561 563 131.2
C 14 254 138582 1052.28 561 563 131.2
C 3 233 52150 393.31 561 563 131.2
D 2 249 172691 1256.19 559 544 137.0
D 1 52 169257 1231.13 559 544 137.0
D 12 6 66152 478.75 559 544 137.0

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