ASTROSAT CZTI

Data Quality Report

Orbit 08162

Creation date: 2024-06-27T15:29:04.848043
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/AS1G07_046T01_9000001124_08162cztM0_level2.evt modeM0/AS1G07_046T01_9000001124_08162cztM0_level2_quad_clean.evt
Size (bytes)548,314,56074,206,080
Size522.9 MB 70.8 MB
Events in quadrant A3,386,595454,224
Events in quadrant B3,614,130458,782
Events in quadrant C3,991,181453,738
Events in quadrant D5,165,818419,317

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140383
B0147102
C0160632
D0195542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66091111.679528%
B66091221.845968%
C66091111.679528%
D660968910.425178%

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 7819 6609 0 0 0.00% 0.00%
B 7819 6609 13 13 0.17% 0.20%
C 7819 6609 0 0 0.00% 0.00%
D 7819 6609 563 563 7.20% 8.52%

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 0 226 8412 42.43 878 862 177.9
A 12 194 7797 38.98 878 862 177.9
A 13 254 4968 23.08 878 862 177.9
B 10 16 71678 429.81 871 855 164.8
B 0 214 70358 421.8 871 855 164.8
B 0 219 47643 283.94 871 855 164.8
C 1 16 697333 3591.03 844 850 194.0
C 13 61 6415 28.69 844 850 194.0
C 12 4 3058 11.38 844 850 194.0
D 1 52 1440219 7350.61 800 778 195.8
D 12 227 453106 2309.85 800 778 195.8
D 12 33 78679 397.81 800 778 195.8

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