ASTROSAT CZTI

Data Quality Report

Orbit 18045

Creation date: 2024-06-27T17:44:18.478160
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/AS1A05_101T02_9000002680_18045cztM0_level2.evt modeM0/AS1A05_101T02_9000002680_18045cztM0_level2_quad_clean.evt
Size (bytes)339,163,20063,936,000
Size323.5 MB 61.0 MB
Events in quadrant A2,082,191411,994
Events in quadrant B2,303,105416,958
Events in quadrant C2,097,525408,574
Events in quadrant D3,486,557386,431

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090941
B096171
C091241
D0134751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4431200.451365%
B4431451.015572%
C4431360.812458%
D4431932.098849%

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 4431 4431 4 4 0.09% 0.09%
B 4431 4431 26 26 0.59% 0.59%
C 4431 4431 0 0 0.00% 0.00%
D 4431 4431 70 70 1.58% 1.58%

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 15 174 33374 305.2 530 519 107.6
A 4 2 10868 96.14 530 519 107.6
A 0 226 4695 38.79 530 519 107.6
B 7 220 174052 1728.46 530 516 100.4
B 0 197 17398 168.15 530 516 100.4
B 12 111 11282 107.23 530 516 100.4
C 14 238 80548 668.24 509 511 119.8
C 8 208 21398 174.39 509 511 119.8
C 3 233 5963 45.52 509 511 119.8
D 7 238 742400 5933.36 510 496 125.0
D 1 52 318230 2541.07 510 496 125.0
D 5 222 241141 1924.55 510 496 125.0

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