ASTROSAT CZTI

Data Quality Report

Orbit 43210

Creation date: 2024-06-27T22:49:19.973338
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/AS1A09_036T17_9000005858_43210cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43210cztM0_level2_quad_clean.evt
Size (bytes)328,616,64090,221,760
Size313.4 MB 86.0 MB
Events in quadrant A3,780,562587,663
Events in quadrant B2,513,668626,904
Events in quadrant C2,569,681592,500
Events in quadrant D2,875,465542,885

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147262
B0111892
C0110252
D0124512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54532514.602971%
B5453110.201724%
C545380.146708%
D5452661.210565%

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 7186 5454 204 204 2.84% 3.74%
B 7186 5454 2 2 0.03% 0.04%
C 7186 5454 1 1 0.01% 0.02%
D 7185 5453 55 55 0.77% 1.01%

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 574795 4700.38 592 580 122.2
A 15 237 573138 4686.81 592 580 122.2
A 13 248 161823 1319.89 592 580 122.2
B 0 229 80032 676.99 603 585 117.4
B 0 186 28593 238.66 603 585 117.4
B 12 111 14875 121.77 603 585 117.4
C 15 214 227740 1627.31 593 597 139.6
C 14 254 15570 107.27 593 597 139.6
C 4 254 11689 79.47 593 597 139.6
D 12 16 174732 1206.11 588 572 144.4
D 1 52 173593 1198.22 588 572 144.4
D 12 6 91175 627.45 588 572 144.4

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