ASTROSAT CZTI

Data Quality Report

Orbit 16919

Creation date: 2024-06-27T17:29:30.109912
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/AS1T03_030T01_9000002512_16919cztM0_level2.evt modeM0/AS1T03_030T01_9000002512_16919cztM0_level2_quad_clean.evt
Size (bytes)591,963,84061,424,640
Size564.5 MB 58.6 MB
Events in quadrant A7,617,464327,625
Events in quadrant B3,397,954380,100
Events in quadrant C3,244,474357,408
Events in quadrant D3,236,692349,897

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271651
B0138991
C0133921
D0136312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6362123119.349261%
B6362360.565860%
C6363500.785793%
D6362140.220057%

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 7648 6364 814 814 10.64% 12.79%
B 7648 6364 1 1 0.01% 0.02%
C 7649 6365 0 0 0.00% 0.00%
D 7648 6364 7 7 0.09% 0.11%

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 15 174 4597259 29106.58 786 771 157.9
A 0 226 6957 39.17 786 771 157.9
A 12 194 5604 30.6 786 771 157.9
B 15 35 99087 628.61 836 819 156.3
B 4 216 18469 112.9 836 819 156.3
B 12 111 18051 110.23 836 819 156.3
C 14 238 125854 689.42 788 793 181.4
C 3 233 45279 245.24 788 793 181.4
C 13 61 5618 26.6 788 793 181.4
D 1 52 146377 762.68 794 773 190.9
D 2 152 59810 309.24 794 773 190.9
D 15 145 27949 142.35 794 773 190.9

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