ASTROSAT CZTI

Data Quality Report

Orbit 04629

Creation date: 2024-06-27T14:44:47.828625
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_190T01_9000000578_04629cztM0_level2.evt modeM0/AS1G05_190T01_9000000578_04629cztM0_level2_quad_clean.evt
Size (bytes)642,006,72071,965,440
Size612.3 MB 68.6 MB
Events in quadrant A3,109,158468,416
Events in quadrant B3,140,593470,254
Events in quadrant C2,819,349464,742
Events in quadrant D9,947,842335,231

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136893
B0135662
C0128572
D0339052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6297691.095760%
B6297400.635223%
C6297100.158806%
D6297211533.587423%

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 7507 6298 26 26 0.35% 0.41%
B 7507 6298 16 16 0.21% 0.25%
C 7507 6298 0 0 0.00% 0.00%
D 7507 6298 2007 2007 26.74% 31.87%

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 0 118 175222 1147.57 740 724 152.1
A 8 15 31168 200.21 740 724 152.1
A 0 226 24348 155.36 740 724 152.1
B 4 48 81025 557.2 752 735 144.1
B 10 246 43556 297.17 752 735 144.1
B 8 3 31605 214.23 752 735 144.1
C 7 221 14945 85.1 714 718 167.2
C 12 4 6584 35.09 714 718 167.2
C 9 54 6535 34.8 714 718 167.2
D 8 112 5110201 34659.67 606 588 147.4
D 13 235 1189384 8063.87 606 588 147.4
D 2 63 741648 5026.78 606 588 147.4

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