ASTROSAT CZTI

Data Quality Report

Orbit 03576

Creation date: 2024-06-27T14:31:09.818669
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/AS1G05_045T01_9000000468_03576cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03576cztM0_level2_quad_clean.evt
Size (bytes)448,937,28086,454,720
Size428.1 MB 82.4 MB
Events in quadrant A2,990,651552,641
Events in quadrant B4,080,217550,557
Events in quadrant C2,880,040549,918
Events in quadrant D3,222,916531,045

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131583
B0164682
C0128742
D0138702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6210500.805153%
B6210841.352657%
C6210380.611916%
D6210530.853462%

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 7460 6211 2 2 0.03% 0.03%
B 7460 6211 10 10 0.13% 0.16%
C 7460 6211 1 1 0.01% 0.02%
D 7460 6211 34 34 0.46% 0.55%

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 0 50 41089 268.47 740 724 150.4
A 3 1 34509 224.7 740 724 150.4
A 8 15 25847 167.09 740 724 150.4
B 15 204 932333 6602.26 748 730 141.1
B 4 81 74789 524.86 748 730 141.1
B 0 229 44781 312.19 748 730 141.1
C 2 53 13230 73.48 728 731 170.1
C 1 16 6426 33.48 728 731 170.1
C 13 61 6212 32.22 728 731 170.1
D 14 34 124736 707.21 725 706 175.4
D 13 70 89253 504.89 725 706 175.4
D 13 46 51279 288.36 725 706 175.4

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