ASTROSAT CZTI

Data Quality Report

Orbit 23710

Creation date: 2024-06-27T18:57:46.447667
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/AS1A07_054T01_9000003504_23710cztM0_level2.evt modeM0/AS1A07_054T01_9000003504_23710cztM0_level2_quad_clean.evt
Size (bytes)454,193,280133,845,120
Size433.2 MB 127.6 MB
Events in quadrant A2,994,744911,533
Events in quadrant B3,255,924944,358
Events in quadrant C3,118,875905,827
Events in quadrant D3,960,241855,248

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129341
B0136551
C0131821
D0161461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6260210.335463%
B6260360.575080%
C6260600.958466%
D62601522.428115%

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 7605 6261 0 0 0.00% 0.00%
B 7605 6261 0 0 0.00% 0.00%
C 7605 6260 0 0 0.00% 0.00%
D 7605 6261 106 106 1.39% 1.69%

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 13 254 9377 56.05 777 762 153.7
A 0 226 6603 38.0 777 762 153.7
A 3 137 6513 37.42 777 762 153.7
B 0 229 132272 916.84 789 771 143.4
B 0 189 22822 153.74 789 771 143.4
B 12 111 17034 113.39 789 771 143.4
C 14 238 124881 705.12 765 771 176.0
C 7 247 6456 32.3 765 771 176.0
C 13 61 5450 26.58 765 771 176.0
D 1 52 1050735 5844.61 751 730 179.7
D 9 85 39827 217.62 751 730 179.7
D 2 234 25909 140.15 751 730 179.7

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