ASTROSAT CZTI

Data Quality Report

Orbit 29444

Creation date: 2024-06-27T20:04:10.265659
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/AS1A10_110T02_9000004234_29444cztM0_level2.evt modeM0/AS1A10_110T02_9000004234_29444cztM0_level2_quad_clean.evt
Size (bytes)1,140,096,960131,351,040
Size1.1 GB 125.3 MB
Events in quadrant A5,927,491831,717
Events in quadrant B6,079,528839,775
Events in quadrant C7,692,174794,027
Events in quadrant D14,069,384732,365

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02300
B02300
C02300
D02300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237282
B0243002
C0300665
D0496242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112591891.678657%
B112602131.891652%
C112593793.366196%
D11260310427.566607%

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 13574 11260 2 2 0.01% 0.02%
B 13575 11262 10 10 0.07% 0.09%
C 13575 11262 7 7 0.05% 0.06%
D 13575 11262 2382 2382 17.55% 21.15%

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 1 113 30123 94.45 1528 1502 303.0
A 13 254 20672 63.26 1528 1502 303.0
A 3 137 14006 41.26 1528 1502 303.0
B 0 156 68248 237.63 1491 1454 281.1
B 0 229 42166 144.84 1491 1454 281.1
B 12 111 34099 116.14 1491 1454 281.1
C 3 233 1834232 5553.02 1432 1443 330.1
C 14 238 240000 722.78 1432 1443 330.1
C 2 114 26706 76.54 1432 1443 330.1
D 12 33 3976004 12558.8 1327 1293 316.5
D 1 52 1836187 5797.67 1327 1293 316.5
D 13 104 1462774 4617.81 1327 1293 316.5

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