ASTROSAT CZTI

Data Quality Report

Orbit 04515

Creation date: 2024-06-27T14:43:10.984911
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_250T01_9000000568_04515cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04515cztM0_level2_quad_clean.evt
Size (bytes)463,654,08080,159,040
Size442.2 MB 76.4 MB
Events in quadrant A3,601,573502,379
Events in quadrant B3,217,781506,572
Events in quadrant C2,946,503493,203
Events in quadrant D3,832,504470,018

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150163
B0138382
C0133242
D0159742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65271261.930443%
B6527400.612839%
C6527120.183852%
D65271091.669986%

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 7852 6528 68 68 0.87% 1.04%
B 7852 6528 13 13 0.17% 0.20%
C 7852 6528 0 0 0.00% 0.00%
D 7852 6528 57 57 0.73% 0.87%

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 13 367393 2385.65 760 746 153.7
A 15 234 282660 1834.32 760 746 153.7
A 8 15 23540 148.31 760 746 153.7
B 10 16 85685 580.19 776 759 146.4
B 4 80 36900 246.9 776 759 146.4
B 8 3 34063 227.52 776 759 146.4
C 9 247 41465 239.81 737 743 169.8
C 14 48 18486 104.49 737 743 169.8
C 13 61 6158 31.89 737 743 169.8
D 1 20 711765 4088.58 725 703 173.9
D 13 235 190147 1089.3 725 703 173.9
D 13 53 57402 326.02 725 703 173.9

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