ASTROSAT CZTI

Data Quality Report

Orbit 42313

Creation date: 2024-06-27T22:38:50.720261
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/AS1A12_102T01_9000005794_42313cztM0_level2.fits modeM0/AS1A12_102T01_9000005794_42313cztM0_level2_quad_clean.evt
Size (bytes)322,735,68096,177,600
Size307.8 MB 91.7 MB
Events in quadrant A3,197,115656,569
Events in quadrant B2,540,002667,940
Events in quadrant C2,619,784628,093
Events in quadrant D3,165,621578,895

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127752
B0112082
C0110662
D0130222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5443360.661400%
B544370.128606%
C544360.110233%
D5443881.616755%

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 7356 5444 19 19 0.26% 0.35%
B 7356 5444 1 1 0.01% 0.02%
C 7356 5444 2 2 0.03% 0.04%
D 7356 5444 72 72 0.98% 1.32%

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 589389 4634.05 625 612 127.1
A 13 248 99291 776.66 625 612 127.1
A 7 3 67997 530.36 625 612 127.1
B 0 245 34726 293.6 615 599 116.2
B 3 112 27453 231.03 615 599 116.2
B 15 35 24137 202.5 615 599 116.2
C 15 214 228960 1639.18 605 606 139.3
C 15 159 13902 95.44 605 606 139.3
C 12 249 13683 93.87 605 606 139.3
D 1 52 296331 2040.59 606 591 144.9
D 13 249 117807 808.78 606 591 144.9
D 2 249 84477 578.81 606 591 144.9

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