ASTROSAT CZTI

Data Quality Report

Orbit 09391

Creation date: 2024-06-27T15:45:26.185857
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_069T01_9000001332_09391cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09391cztM0_level2_quad_clean.evt
Size (bytes)444,899,52098,778,240
Size424.3 MB 94.2 MB
Events in quadrant A3,529,539647,917
Events in quadrant B3,032,506654,151
Events in quadrant C2,763,111651,299
Events in quadrant D3,747,108625,054

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01443712
B0131876
C01220517
D01502614

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5914691.166723%
B5916781.318458%
C5909440.744627%
D59132013.399290%

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 7098 5919 4 4 0.06% 0.07%
B 7098 5919 10 10 0.14% 0.17%
C 7098 5917 0 0 0.00% 0.00%
D 7098 5919 132 132 1.86% 2.23%

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 8 5 669244 4568.0 723 707 146.4
A 13 251 31722 211.92 723 707 146.4
A 1 162 21955 145.18 723 707 146.4
B 0 187 100119 733.2 721 704 135.6
B 0 214 76037 555.59 721 704 135.6
B 0 219 30354 218.67 721 704 135.6
C 13 61 5253 28.11 707 712 161.5
C 8 222 1952 7.68 707 712 161.5
C 3 202 1844 7.01 707 712 161.5
D 2 14 332610 1892.96 700 683 175.3
D 12 227 252831 1437.98 700 683 175.3
D 1 52 216315 1229.74 700 683 175.3

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