ASTROSAT CZTI

Data Quality Report

Orbit 25123

Creation date: 2024-06-27T19:14:11.229756
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/AS1A08_003T16_9000003676_25123cztM0_level2.evt modeM0/AS1A08_003T16_9000003676_25123cztM0_level2_quad_clean.evt
Size (bytes)310,236,48048,268,800
Size295.9 MB 46.0 MB
Events in quadrant A1,817,648311,620
Events in quadrant B1,878,941312,726
Events in quadrant C2,376,753295,710
Events in quadrant D3,073,528283,128

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077480
B078950
C0100340
D0117020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3650521.424658%
B3650681.863014%
C36501022.794521%
D36492035.563168%

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 4590 3650 0 0 0.00% 0.00%
B 4590 3650 8 8 0.17% 0.22%
C 4590 3650 0 0 0.00% 0.00%
D 4589 3649 174 174 3.79% 4.77%

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 13 254 6365 61.68 471 461 95.7
A 3 137 4432 41.49 471 461 95.7
A 0 226 3981 36.78 471 461 95.7
B 3 64 43801 473.96 465 455 91.5
B 12 111 11079 116.17 465 455 91.5
B 11 111 9894 103.21 465 455 91.5
C 7 247 553234 5154.77 448 452 107.2
C 14 238 70198 650.39 448 452 107.2
C 3 233 6589 57.23 448 452 107.2
D 12 235 606547 5433.52 449 435 111.6
D 12 33 263570 2358.89 449 435 111.6
D 8 195 162025 1448.58 449 435 111.6

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