ASTROSAT CZTI

Data Quality Report

Orbit 27034

Creation date: 2024-06-27T19:35:44.912859
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_120T02_9000003904_27034cztM0_level2.evt modeM0/AS1A09_120T02_9000003904_27034cztM0_level2_quad_clean.evt
Size (bytes)663,327,36070,925,760
Size632.6 MB 67.6 MB
Events in quadrant A7,922,052364,348
Events in quadrant B3,609,052456,494
Events in quadrant C3,456,225437,213
Events in quadrant D4,650,416424,303

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280700
B0147380
C0142200
D0181980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6670191428.695652%
B6670931.394303%
C66701101.649175%
D66702724.077961%

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 7645 6670 1474 1474 19.28% 22.10%
B 7645 6670 5 5 0.07% 0.07%
C 7645 6670 0 0 0.00% 0.00%
D 7645 6670 175 175 2.29% 2.62%

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 14 235 4792098 30519.57 778 764 157.0
A 0 13 108681 687.4 778 764 157.0
A 8 192 14801 89.41 778 764 157.0
B 10 245 82026 486.17 872 851 167.0
B 0 189 66028 390.36 872 851 167.0
B 0 219 29060 168.95 872 851 167.0
C 14 238 135911 677.55 847 856 199.3
C 15 208 15836 75.15 847 856 199.3
C 14 225 7482 33.24 847 856 199.3
D 1 52 1016056 5083.23 846 824 199.7
D 12 233 165655 825.3 846 824 199.7
D 2 250 119596 594.69 846 824 199.7

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