ASTROSAT CZTI

Data Quality Report

Orbit 11013

Creation date: 2024-06-27T16:07:00.496904
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/AS1C03_004T01_9000001598_11013cztM0_level2.evt modeM0/AS1C03_004T01_9000001598_11013cztM0_level2_quad_clean.evt
Size (bytes)706,219,200102,553,920
Size673.5 MB 97.8 MB
Events in quadrant A9,487,990548,558
Events in quadrant B3,829,116728,918
Events in quadrant C2,955,182736,024
Events in quadrant D4,705,016666,951

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0324732
B0152401
C0126071
D0181651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6075241939.818930%
B60752193.604938%
C6075110.181070%
D60752784.576132%

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 7360 6075 2026 2026 27.53% 33.35%
B 7360 6076 129 129 1.75% 2.12%
C 7360 6076 0 0 0.00% 0.00%
D 7360 6076 236 236 3.21% 3.88%

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 14 238 6545874 53181.78 617 605 123.1
A 8 5 474860 3853.43 617 605 123.1
A 15 174 29433 234.23 617 605 123.1
B 4 239 759147 5517.74 756 740 137.4
B 15 204 39231 280.04 756 740 137.4
B 0 214 36021 256.68 756 740 137.4
C 13 61 5632 28.22 757 760 172.6
C 14 234 3344 14.97 757 760 172.6
C 3 202 1995 7.15 757 760 172.6
D 11 129 696136 4035.15 728 709 172.3
D 10 253 689693 3997.77 728 709 172.3
D 1 52 193534 1118.85 728 709 172.3

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