ASTROSAT CZTI

Data Quality Report

Orbit 12349

Creation date: 2024-06-27T16:25:53.921864
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/AS1A04_210T01_9000001824_12349cztM0_level2.evt modeM0/AS1A04_210T01_9000001824_12349cztM0_level2_quad_clean.evt
Size (bytes)440,562,24082,872,000
Size420.2 MB 79.0 MB
Events in quadrant A3,224,730533,181
Events in quadrant B3,060,413543,603
Events in quadrant C2,671,864538,477
Events in quadrant D4,002,454500,287

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131441
B0127381
C0117531
D0155931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56341592.822151%
B56342334.135605%
C5634871.544196%
D56343085.466809%

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 6690 5636 1 1 0.01% 0.02%
B 6690 5636 35 35 0.52% 0.62%
C 6690 5636 0 0 0.00% 0.00%
D 6690 5636 202 202 3.02% 3.58%

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 13 251 213834 1520.49 690 674 140.2
A 1 162 113374 803.9 690 674 140.2
A 8 15 72269 510.69 690 674 140.2
B 4 239 248672 1866.25 690 674 132.9
B 3 64 35536 262.35 690 674 132.9
B 0 230 33680 248.38 690 674 132.9
C 15 208 22631 139.28 674 678 157.6
C 8 128 9441 55.6 674 678 157.6
C 8 112 5175 28.53 674 678 157.6
D 1 52 1244631 7700.43 663 645 161.5
D 13 104 63352 388.16 663 645 161.5
D 14 34 54911 335.91 663 645 161.5

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