ASTROSAT CZTI

Data Quality Report

Orbit 39290

Creation date: 2024-06-27T22:02:46.037017
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_025T12_9000005458_39290cztM0_level2.fits modeM0/AS1A12_025T12_9000005458_39290cztM0_level2_quad_clean.evt
Size (bytes)463,919,04056,787,840
Size442.4 MB 54.2 MB
Events in quadrant A2,136,416472,918
Events in quadrant B2,355,726470,616
Events in quadrant C2,015,930458,919
Events in quadrant D10,348,04931,459

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085210
B096320
C083310
D0335770

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A405470.172669%
B40541403.453379%
C405470.172669%
D4054383294.523927%

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 4054 4054 2 2 0.05% 0.05%
B 4054 4054 88 88 2.17% 2.17%
C 4054 4054 2 2 0.05% 0.05%
D 4054 4053 3342 3342 82.44% 82.46%

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 278735 2895.19 469 460 96.1
A 15 222 43228 444.96 469 460 96.1
A 3 137 5023 47.47 469 460 96.1
B 5 172 517449 5705.69 458 445 90.6
B 5 255 35297 384.63 458 445 90.6
B 12 111 11132 117.94 458 445 90.6
C 15 214 167241 1553.56 458 463 107.4
C 9 187 44560 410.77 458 463 107.4
C 0 10 8497 74.84 458 463 107.4
D 12 235 9434674 196584.64 190 184 48.0
D 12 227 84418 1755.17 190 184 48.0
D 13 249 46260 960.08 190 184 48.0

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